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<div class=Section1><pre><font size=2 face="Courier New"><span
style='font-size:10.0pt'>In pursuing this bug further I have managed to collect more information in the hopes Spread developers can provide a fix or at least shed some light on what may be going on here. Here is the most recent data I have obtained and some speculation about what may be broken:<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>During a heavy load test (many spread messages being sent at the time the CPU where the spread daemons are running are highly utilized) on Spread I observed a crash in the Alarm() call in the following code in membership.c: <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>static void Create_form1()<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>{<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>....<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> /* update holes */<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> rg_info->num_holes = 0;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> for( index = My_aru+1; index <= Highest_seq; index++ )<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> pack_entry = index & PACKET_MASK;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> if( ! Packets[pack_entry].exist )<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> *holes_procs_ptr = index;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>CRASH >>>> Alarm( MEMB ,<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> "INSERT HOLE 1 IS %d My_aru is %d, Highest_seq is %d\n",<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> index,My_aru, Highest_seq);<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> holes_procs_ptr++;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> num_bytes += sizeof(int32);<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> rg_info->num_holes++;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> }<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> }<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>....<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>}<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>From examining the core file and the code itself it seems to be the case that the function wrote past the limits of rg_info_buf[] array while writing holes to the token and corrupted the stack eventually causing the program to crash with SIGSEGV.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>From looking at constants and related data types it seems to me that if there are too many holes to include in a token code breaks as it does not check that the holes will fit in the rg_info_buf array properly.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>By the time of the crash some of the relevant global values were:<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>(gdb) p Highest_seq<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>$9 = 47491<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>(gdb) p My_aru<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>$10 = 1225<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>(gdb)<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>The partial dump of Packets[] is attached at the end if needed.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>From these numbers it appears to me as this spread deamon that crash got really behind and the code does not handle that situation properly...<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Also as I read the code that sets these globals I ran across the following function:<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>static void Backoff_membership()<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>{<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> int pack_entry;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> int i;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> pack_entry=-1;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> for( i=Last_discarded+1; i <= Highest_seq; i++ )<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> /* clear dummy messages */<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> pack_entry = i & PACKET_MASK;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> if( Packets[pack_entry].exist == 3 )<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> Packets[pack_entry].exist = 0;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> }<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> /* return Aru and My_aru */<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> Aru = Last_discarded;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> My_aru = Last_discarded;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> for( i=Last_discarded+1; i <= Highest_seq; i++ )<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> if( !Packets[pack_entry].exist ) break;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> My_aru++;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> }<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>}<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>My question about this function is whether the second loop is properly coded: in other words was the if( !Packets[pack_entry].exist ) break; intended to check a pack_entry value which is constant or was there some typo and the pack_entry in this second loop supposed to track the loop index as in the first loop.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Your help is greatly appreciated in getting to the root of this issue.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Regards, Juan<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>(gdb) p Packets[1255]@6397<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>$7 = {{head = 0x82d50f0, body = 0x95b7d70, exist = 0, proc_index = 0}, {head = 0x89078d8, body = 0x8af1168, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> exist = 0, proc_index = 0}, {head = 0x8411710, body = 0x8af1168, exist = 0, proc_index = 0}, {head = 0x89078d8, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8af1168, exist = 0, proc_index = 0}, {head = 0x8411710, body = 0x8af1168, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x89078d8, body = 0x8af1168, exist = 0, proc_index = 0}, {head = 0x8411710, body = 0x8af1168, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x89078d8, body = 0x95b7d70, exist = 0, proc_index = 0}, {head = 0x82d50f0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8af1168, exist = 0, proc_index = 0}, {head = 0x8411710, body = 0x8af1168, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82d50f0, body = 0x8af1168, exist = 0, proc_index = 0}, {head = 0x8411710, body = 0x8af1168, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x82d50f0, body = 0x8af1168, exist = 0, proc_index = 0}, {head = 0x8411710, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x95b7d70, exist = 0, proc_index = 0}, {head = 0x89078d8, body = 0x95b7d70, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x8411710, body = 0x95b7d70, exist = 0, proc_index = 0}, {head = 0x89078d8, body = 0x95b7d70, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x8411710, body = 0x95b7d70, exist = 0, proc_index = 0}, {head = 0x89078d8, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x95b7d70, exist = 0, proc_index = 0}, {head = 0x8411710, body = 0x9180cd8, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82d50f0, body = 0x92f3420, exist = 0, proc_index = 3}, {head = 0x8412130, body = 0x95b7d70, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x89078d8, body = 0x8af1168, exist = 0, proc_index = 0}, {head = 0x8412130, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8af1168, exist = 0, proc_index = 3}, {head = 0x82d50f0, body = 0x95b7d70, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82d1be0, body = 0x92f3420, exist = 0, proc_index = 0}, {head = 0x8411710, body = 0x95b7d70, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x89078d8, body = 0x9180cd8, exist = 0, proc_index = 0}, {head = 0x8412130, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x95b7d70, exist = 0, proc_index = 3}, {head = 0x82d50f0, body = 0x93b9ad0, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82d1be0, body = 0x95b7d70, exist = 0, proc_index = 3}, {head = 0x8411e60, body = 0x8af1168, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x82d5e20, body = 0x92f3420, exist = 0, proc_index = 3}, {head = 0x82d1b20, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x9422a78, exist = 0, proc_index = 3}, {head = 0x8411710, body = 0x9180cd8, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x89078d8, body = 0x9422a78, exist = 0, proc_index = 3}, {head = 0x81f3380, body = 0x89e8b10, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x82f6030, body = 0x92f3420, exist = 0, proc_index = 3}, {head = 0x82e5938, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8af1168, exist = 0, proc_index = 3}, {head = 0x82fc850, body = 0x95b7d70, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x8412130, body = 0x93b9ad0, exist = 0, proc_index = 0}, {head = 0x82d5e20, body = 0x95b7d70, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x8411e60, body = 0x87463e0, exist = 0, proc_index = 3}, {head = 0x82d1be0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8528b18, exist = 0, proc_index = 3}, {head = 0x82d50f0, body = 0x8b24538, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82d1b20, body = 0x92f3420, exist = 0, proc_index = 0}, {head = 0x82e5938, body = 0x8b24538, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x82f6030, body = 0x8b30550, exist = 0, proc_index = 3}, {head = 0x82f6030, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8b24538, exist = 0, proc_index = 3}, {head = 0x82fc850, body = 0x8b30550, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82e5938, body = 0x8b30550, exist = 0, proc_index = 0}, {head = 0x82fc850, body = 0x8b30550, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x82e5938, body = 0x8b30550, exist = 0, proc_index = 0}, {head = 0x82fc850, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8b24538, exist = 0, proc_index = 0}, {head = 0x82f6030, body = 0x8b30550, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82e5938, body = 0x8b30550, exist = 0, proc_index = 0}, {head = 0x82f6030, body = 0x8b30550, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x82e5938, body = 0x8b30550, exist = 0, proc_index = 0}, {head = 0x82f6030, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8528b18, exist = 0, proc_index = 0}, {head = 0x82fc850, body = 0x87463e0, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82d1b20, body = 0x95b7d70, exist = 0, proc_index = 3}, {head = 0x82d50f0, body = 0x93b9ad0, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x82d1be0, body = 0x89e8b10, exist = 0, proc_index = 3}, {head = 0x82e5938, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x93b9ad0, exist = 0, proc_index = 0}, {head = 0x82d50f0, body = 0x95b7d70, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82d1b20, body = 0x95b7d70, exist = 0, proc_index = 3}, {head = 0x82fc850, body = 0x89e8b10, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x82f6030, body = 0x87463e0, exist = 0, proc_index = 3}, {head = 0x82d1be0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8528b18, exist = 0, proc_index = 0}, {head = 0x82d50f0, body = 0x8af1168, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82fc850, body = 0x8528b18, exist = 0, proc_index = 3}, {head = 0x82d1b20, body = 0x87463e0, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x82e5938, body = 0x89e8b10, exist = 0, proc_index = 3}, {head = 0x8411e60, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x95b7d70, exist = 0, proc_index = 3}, {head = 0x82d5e20, body = 0x93b9ad0, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x8412130, body = 0x9180cd8, exist = 0, proc_index = 3}, {head = 0x81f3380, body = 0x868a840, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x89078d8, body = 0x82f2560, exist = 0, proc_index = 3}, {head = 0x82f6030, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8b24538, exist = 0, proc_index = 0}, {head = 0x8411710, body = 0x82f2560, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82d6760, body = 0x9422a78, exist = 0, proc_index = 3}, {head = 0x82d1be0, body = 0x9422a78, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x82d6760, body = 0x82f2560, exist = 0, proc_index = 0}, {head = 0x8411710, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x82f2560, exist = 0, proc_index = 0}, {head = 0x82d6760, body = 0x9422a78, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82d1be0, body = 0x9422a78, exist = 0, proc_index = 0}, {head = 0x82d6760, body = 0x9422a78, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x82d6760, body = 0x82f2560, exist = 0, proc_index = 3}, {head = 0x82d6760, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x9422a78, exist = 0, proc_index = 3}, {head = 0x82d1be0, body = 0x9422a78, exist = 0, proc_index = 1}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82d6760, body = 0x82f2560, exist = 0, proc_index = 1}, {head = 0x82d1be0, body = 0x93ac2d0, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 1}, {head = 0x8411710, body = 0x8b24538, exist = 0, proc_index = 1}, {head = 0x82f6030, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x93ac2d0, exist = 0, proc_index = 1}, {head = 0x82d1be0, body = 0x8b24538, exist = 0, proc_index = 1}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x8411710, body = 0x8b24538, exist = 0, proc_index = 0}, {head = 0x82d1be0, body = 0x8b24538, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 1}, {head = 0x8411710, body = 0x82f2560, exist = 0, proc_index = 1}, {head = 0x82f6030, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x868a840, exist = 0, proc_index = 1}, {head = 0x82d6760, body = 0x93b9ad0, exist = 0, proc_index = 1}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x89078d8, body = 0x89e8b10, exist = 0, proc_index = 1}, {head = 0x81f3380, body = 0x8528b18, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 1}, {head = 0x8412130, body = 0x92f3420, exist = 0, proc_index = 1}, {head = 0x82d5e20, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x84c7a98, exist = 0, proc_index = 1}, {head = 0x8411e60, body = 0x87c7930, exist = 0, proc_index = 1}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82e5938, body = 0x9018c60, exist = 0, proc_index = 1}, {head = 0x82d1b20, body = 0x8472a88, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x82d50f0, body = 0x9018c60, exist = 0, proc_index = 3}, {head = 0x868c1c8, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x87c7930, exist = 0, proc_index = 3}, {head = 0x82d2ea8, body = 0x84c7a98, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82f1408, body = 0x92f3420, exist = 0, proc_index = 3}, {head = 0x82e5968, body = 0x8528b18, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x8309ff8, body = 0x89e8b10, exist = 0, proc_index = 3}, {head = 0x8907968, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x93b9ad0, exist = 0, proc_index = 3}, {head = 0x8503db8, body = 0x868a840, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x8689350, body = 0x82f2560, exist = 0, proc_index = 3}, {head = 0x8309930, body = 0x8b24538, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x86894f8, body = 0x96739d0, exist = 0, proc_index = 3}, {head = 0x868bf88, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x9583ea0, exist = 0, proc_index = 3}, {head = 0x8309840, body = 0x8c42888, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82fc850, body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x8309840, body = 0x8c42888, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x82fc850, body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x8309840, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x82fc850, body = 0x9583ea0, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x868bf88, body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x8309840, body = 0x8c42888, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x868bf88, body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x8309840, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x868bf88, body = 0x9583ea0, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82fc850, body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x8309840, body = 0x9583ea0, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x868bf88, body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x82fc850, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x9583ea0, exist = 0, proc_index = 0}, {head = 0x8309840, body = 0x9583ea0, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82fc850, body = 0x9583ea0, exist = 0, proc_index = 0}, {head = 0x8309840, body = 0x9583ea0, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x82fc850, body = 0x9583ea0, exist = 0, proc_index = 0}, {head = 0x8309840, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x9583ea0, exist = 0, proc_index = 0}, {head = 0x82fc850, body = 0x8c42888, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x868bf88, body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x82fc850, body = 0x9583ea0, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x8309840, body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x868bf88, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x9583ea0, exist = 0, proc_index = 0}, {head = 0x82fc850, body = 0x8c42888, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x8309840, body = 0x9583ea0, exist = 0, proc_index = 0}, {head = 0x868bf88, body = 0x9583ea0, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x8309840, body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x82fc850, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x9583ea0, exist = 0, proc_index = 0}, {head = 0x868bf88, body = 0x9583ea0, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82fc850, body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x8309840, body = 0x8c42888, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x82fc850, body = 0x9583ea0, exist = 0, proc_index = 0}, {head = 0x868bf88, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x9583ea0, exist = 0, proc_index = 0}, {head = 0x82fc850, body = 0x8c42888, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x8309840, body = 0x9583ea0, exist = 0, proc_index = 0}, {head = 0x868bf88, body = 0x96739d0, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x82fc850, body = 0x94f4be8, exist = 0, proc_index = 0}, {head = 0x86894f8, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x9583ea0, exist = 0, proc_index = 0}, {head = 0x8309840, body = 0x96739d0, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82fc850, body = 0x8c42888, exist = 0, proc_index = 0}, {head = 0x868bf88, body = 0x9583ea0, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x86894f8, body = 0x9583ea0, exist = 0, proc_index = 0}, {head = 0x82fc850, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8528b18, exist = 0, proc_index = 3}, {head = 0x8309840, body = 0x8c42888, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x8309930, body = 0x96739d0, exist = 0, proc_index = 3}, {head = 0x8689350, body = 0x8b24538, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x8503db8, body = 0x82f2560, exist = 0, proc_index = 3}, {head = 0x8907968, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x868a840, exist = 0, proc_index = 3}, {head = 0x8309ff8, body = 0x93b9ad0, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x868bf88, body = 0x8472a88, exist = 0, proc_index = 0}, {head = 0x82f1408, body = 0x93b9ad0, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x82d2ea8, body = 0x89e8b10, exist = 0, proc_index = 3}, {head = 0x868c1c8, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x92f3420, exist = 0, proc_index = 3}, {head = 0x82d50f0, body = 0x84c7a98, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82d1b20, body = 0x87c7930, exist = 0, proc_index = 3}, {head = 0x8309ff8, body = 0x87c7930, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 3}, {head = 0x8907968, body = 0x9018c60, exist = 0, proc_index = 3}, {head = 0x8503db8, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x868a840, exist = 0, proc_index = 3}, {head = 0x8689350, body = 0x82f2560, exist = 0, proc_index = 3}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x8309930, body = 0x8b24538, exist = 0, proc_index = 3}, {head = 0x82e5968, body = 0x8b24538, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x8309930, body = 0x8b24538, exist = 0, proc_index = 0}, {head = 0x82e5968, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x868a840, exist = 0, proc_index = 0}, {head = 0x8689350, body = 0x94f4be8, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x8503db8, body = 0x9018c60, exist = 0, proc_index = 0}, {head = 0x8907968, body = 0x868a840, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x8503db8, body = 0x82f2560, exist = 0, proc_index = 0}, {head = 0x8689350, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x9018c60, exist = 0, proc_index = 0}, {head = 0x82e5968, body = 0x8b24538, exist = 0, proc_index = 2}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x8309930, body = 0x84c7a98, exist = 0, proc_index = 0}, {head = 0x8309ff8, body = 0x94f4be8, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x82d1b20, body = 0x87c7930, exist = 0, proc_index = 0}, {head = 0x82d50f0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x89e8b10, exist = 0, proc_index = 0}, {head = 0x868c1c8, body = 0x96739d0, exist = 0, proc_index = 0}, {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> head = 0x82e5968, body = 0x96739d0, exist = 0, proc_index = 3}, {head = 0x82d2ea8, body = 0x87c7930, exist = 0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> proc_index = 0}, {head = 0x868c1c8, body = 0x92f3420, exist = 0, proc_index = 0}, {head = 0x82d50f0, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> body = 0x8b24538, exist = 0, proc_index = 0}, {head = 0x82d1b20, body = 0x84c7a98, exist = 0, proc_index = 0}...}<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
</FIELDSET>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=3 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Juan Gomez <br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, July 10, 2007 5:50
PM<br>
<b><span style='font-weight:bold'>To:</span></b> '<st1:PersonName w:st="on">spread-users@lists.spread.org</st1:PersonName>'<br>
<b><span style='font-weight:bold'>Cc:</span></b> Juan Gomez<br>
<b><span style='font-weight:bold'>Subject:</span></b> Spread 4.0 memory
corruption bug in Fill_form1()</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi all:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have noticed that after long running test spread 4.0
crashes with corrupted stack in the following spot:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Membership.c:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>static void
Fill_form1( sys_scatter *scat )<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>{<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>....<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
/* New ring_info will fit, so create it */<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
for( index = Last_discarded+1; index <= Highest_seq; index++ )<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
{<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
pack_entry = index & PACKET_MASK;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
if( ! Packets[pack_entry].exist )<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
{<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
*new_holes_procs_ptr = index;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
Alarm( MEMB , "INSERT HOLE 2 IS %d\n",index);
<<<<<<<<<<<<<<<<<<<<<<<<<
CRASH HERE<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
new_holes_procs_ptr++;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
num_bytes += sizeof(int32);<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
new_rg_info->num_holes++;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
}<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
}<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>}<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The first stack trace I got was this:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<pre><font size=2 face="Courier New"><span lang=DE style='font-size:10.0pt'>(gdb) where<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span lang=DE style='font-size:10.0pt'>#0 0xb7ebe9da in getenv () from /lib/libc.so.6<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>#1 0xb7f10d19 in tzset_internal () from /lib/libc.so.6<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>#2 0xb7f11a28 in __tz_convert () from /lib/libc.so.6<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>#3 0xb7f0fca0 in localtime () from /lib/libc.so.6<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>#4 0x08053498 in Alarm (mask=512, message=0x806c171 "INSERT HOLE 2 IS %d\n")<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> at alarm.c:146<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>#5 0x0805864e in Fill_form1 (scat=Variable "scat" is not available.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>) at membership.c:1837<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>#6 0x00000f79 in ?? ()<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>#7 0x00000f7a in ?? ()<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>#8 0x00000f7b in ?? ()<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>#9 0x00000f7c in ?? ()<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>This obviously shows the stack was corrupted and since the only part of the code I could suspect of causing this corruption was the following buffer:<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> char rg_info_buf[sizeof(token_body)];<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>I added asserts to track exactly at what point we overrun the buffer and found the following:<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>....<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> rg_info_buf_end = rg_info_buf + sizeof(token_body);<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>....<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> /* New ring_info will fit, so create it */<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> for( index = Last_discarded+1; index <= Highest_seq; index++ )<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> pack_entry = index & PACKET_MASK;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> if( ! Packets[pack_entry].exist )<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> {<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> assert((rg_info_buf + num_bytes + sizeof(int32)) <= rg_info_buf_end); <<<<< TRIGERRED ASSERT<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> *new_holes_procs_ptr = index;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> Alarm( MEMB , "INSERT HOLE 2 IS %d\n",index);<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> new_holes_procs_ptr++;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> num_bytes += sizeof(int32);<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> new_rg_info->num_holes++;<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> }<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> }<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>So it looks like we overrun the rg_info_buf under some conditions and I am wondering if snybody has seen this problem or whether there have been patches issued for this issue? This was observed with 8 node cluster....<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Regards, Juan<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
</FIELDSET>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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