[ZOOKEEPER-740] zkpython leading to segfault on zookeeper

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Assignee: Henry Robinson
• Reporter: Federico
• Created: 13/Apr/10 08:08
• Updated: 25/Apr/14 01:45
• Resolved: 25/Apr/14 01:45

Description

The program that we are implementing uses the python binding for zookeeper but sometimes it crash with segfault; here is the bt from gdb:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xad244b70 (LWP 28216)]
0x080611d5 in PyObject_Call (func=0x862fab0, arg=0x8837194, kw=0x0)
at ../Objects/abstract.c:2488
2488 ../Objects/abstract.c: No such file or directory.
in ../Objects/abstract.c
(gdb) bt
#0 0x080611d5 in PyObject_Call (func=0x862fab0, arg=0x8837194, kw=0x0)
at ../Objects/abstract.c:2488
#1 0x080d6ef2 in PyEval_CallObjectWithKeywords (func=0x862fab0,
arg=0x8837194, kw=0x0) at ../Python/ceval.c:3575
#2 0x080612a0 in PyObject_CallObject (o=0x862fab0, a=0x8837194)
at ../Objects/abstract.c:2480
#3 0x0047af42 in watcher_dispatch (zzh=0x86174e0, type=-1, state=1,
path=0x86337c8 "", context=0x8588660) at src/c/zookeeper.c:314
#4 0x00496559 in do_foreach_watcher (zh=0x86174e0, type=-1, state=1,
path=0x86337c8 "", list=0xa5354140) at src/zk_hashtable.c:275
#5 deliverWatchers (zh=0x86174e0, type=-1, state=1, path=0x86337c8 "",
list=0xa5354140) at src/zk_hashtable.c:317
#6 0x0048ae3c in process_completions (zh=0x86174e0) at src/zookeeper.c:1766
#7 0x0049706b in do_completion (v=0x86174e0) at src/mt_adaptor.c:333
#8 0x0013380e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9 0x002578de in clone () from /lib/tls/i686/cmov/libc.so.6

Issue Links

• duplicates: ZOOKEEPER-670 zkpython leading to segfault on zookeeper server restart
• is duplicated by: ZOOKEEPER-888 c-client / zkpython: Double free corruption on node watcher
• relates to: ZOOKEEPER-631 zkpython's C code could do with a style clean-up