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possible hash deadlock with recent changes
From: |
dsmich |
Subject: |
possible hash deadlock with recent changes |
Date: |
Sat, 7 May 2011 10:58:03 -0400 |
Recent changes to stable-2.0 seem to cause a deadlock in scwm. Here is the
last 10 frames of a backtrace.
-Dale
(gdb) bt
#0 0xb77fa424 in __kernel_vsyscall ()
#1 0xb734cf02 in __lll_lock_wait ()
at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/lowlevellock.S:142
#2 0xb734839b in _L_lock_728 () from /lib/i686/cmov/libpthread.so.0
#3 0xb73481c1 in __pthread_mutex_lock (mutex=0xb74e60a0)
at pthread_mutex_lock.c:61
#4 0xb74d4737 in GC_lock () at pthread_support.c:1681
#5 0xb74c8b79 in GC_general_register_disappearing_link (link=0x8882e14,
obj=0x886be50) at finalize.c:156
#6 0xb75716eb in set_weak_cdr (data=0xbf9f5b18) at hashtab.c:783
#7 0xb74c74dc in GC_call_with_alloc_lock (fn=0xb75716a0 <set_weak_cdr>,
client_data=0xbf9f5b18) at finalize.c:925
#8 0xb7572b30 in scm_hash_fn_set_x (table=0x885f3f0, obj=0x89f2a30,
val=0x886be50, hash_fn=0xb7571050 <scm_ihash>,
assoc_fn=0xb7539820 <scm_sloppy_assoc>, closure=0x0) at hashtab.c:808
#9 0xb7572be7 in scm_hash_set_x (table=0x885f3f0, key=0x89f2a30,
val=0x886be50) at hashtab.c:1108
#10 0x080659c4 in ScmMakeColor (cn=0xbf9f5bf1 "rgb:5f5f/5f5f/5f5f",
perror_status=0x0) at color.c:230
- possible hash deadlock with recent changes,
dsmich <=