Summary: | ASTERISK-05403: Segfault from time to time in todays head | ||
Reporter: | Lorenz Barth (bartpbx) | Labels: | |
Date Opened: | 2005-10-30 15:37:06.000-0600 | Date Closed: | 2005-10-30 20:19:37.000-0600 |
Priority: | Critical | Regression? | No |
Status: | Closed/Complete | Components: | Core/General |
Versions: | Frequency of Occurrence | ||
Related Issues: | |||
Environment: | Attachments: | ( 0) bt.txt | |
Description: | I've seen a few segfaults with todays HEAD version. I can not reproduce them currently. They appered 5 times today. See BT attached | ||
Comments: | By: Andrew Kohlsmith (akohlsmith) 2005-10-30 15:44:31.000-0600 I've been working with bartpbx a little on this (I'm going through his corefile with gdb) It seems the problem is not in ast_channel_inherit_variables() but further up the chain. This is why I believe this is the case: 1. parent->varshead points to an empty variable set (gdb) print parent->varshead $1 = {first = 0x0, last = 0x0, lock = {__m_reserved = 0, __m_count = 0, __m_owner = 0x0, __m_kind = 0, __m_lock = {__status = 0, __spinlock = 0}}} 2. parent itself seems corrupt: (gdb) print parent->name $2 = "\000\000\000\000Q\223\032\b__CALLED\000494022611090", '\0' <repeats 15 times>, "9\000\000\000\220\223\032\b\226\223\032\b\002\000\000\000\001", '\0' <repeats 15 times>, " \222\032\b" the SIGSEGV occurs after AST_LIST_INSERT_TAIL in case 2, but that's the odd part. parent->varshead points to an empty variable set, so how the hell did it find a hardlinked variable? (gdb) print current->name $4 = 0x81a9880 "__CALLED" (gdb) print current->value $5 = 0x81a9889 "494022611090" By: Clod Patry (junky) 2005-10-30 20:18:49.000-0600 Since they related to the same problem. |