[Gluster-devel] Gluster samba panic?

[Glomski, Patrick]

I am running an SL7.2 machine with the samba version 4.2.4 hosted at
download.gluster.org. I use the samba glusterfs virtual filesystem to
connect to a 3.6.6 gluster array. Periodically (every hour or so when in
use) smbd will panic, crash, and restart. Users don't seem to be
complaining about it, but the fact that it keeps crashing is worrisome.
Does anyone know if this issue has a bug or is fixed in a newer version of
the glusterfs vfs plugin? I've attached an excerpt from /var/log/messages
and a core dump.

# cat /etc/redhat-release; echo "samba: $(smbd --version)"; echo "vfs:
$(rpm -qa | grep vfs-glusterfs)"

Scientific Linux release 7.2 (Nitrogen)
samba: Version 4.2.4
vfs: samba-vfs-glusterfs-4.2.4-6.el7.centos.x86_64

/var/log/messages panic
#######################
Feb 10 12:38:11 sb1 smbd[4880]: [2016/02/10 12:38:11.329296,  0]
../lib/util/fault.c:78(fault_report)
Feb 10 12:38:11 sb1 smbd[4880]:
===============================================================
Feb 10 12:38:11 sb1 smbd[4880]: [2016/02/10 12:38:11.329342,  0]
../lib/util/fault.c:79(fault_report)
Feb 10 12:38:11 sb1 smbd[4880]:  INTERNAL ERROR: Signal 6 in pid 4880
(4.2.4)
Feb 10 12:38:11 sb1 smbd[4880]:  Please read the Trouble-Shooting section
of the Samba HOWTO
Feb 10 12:38:11 sb1 smbd[4880]: [2016/02/10 12:38:11.329365,  0]
../lib/util/fault.c:81(fault_report)
Feb 10 12:38:11 sb1 smbd[4880]:
===============================================================
Feb 10 12:38:11 sb1 smbd[4880]: [2016/02/10 12:38:11.329390,  0]
../source3/lib/util.c:788(smb_panic_s3)
Feb 10 12:38:11 sb1 smbd[4880]:  PANIC (pid 4880): internal error
Feb 10 12:38:11 sb1 smbd[4880]: [2016/02/10 12:38:11.329633,  0]
../source3/lib/util.c:899(log_stack_trace)
Feb 10 12:38:11 sb1 smbd[4880]:  BACKTRACE: 12 stack frames:
Feb 10 12:38:11 sb1 smbd[4880]:   #0
/lib64/libsmbconf.so.0(log_stack_trace+0x1a) [0x7f24d03ced5a]
Feb 10 12:38:11 sb1 smbd[4880]:   #1
/lib64/libsmbconf.so.0(smb_panic_s3+0x20) [0x7f24d03cee30]
Feb 10 12:38:11 sb1 smbd[4880]:   #2
/lib64/libsamba-util.so.0(smb_panic+0x2f) [0x7f24d221e87f]
Feb 10 12:38:11 sb1 smbd[4880]:   #3 /lib64/libsamba-util.so.0(+0x1aa96)
[0x7f24d221ea96]
Feb 10 12:38:11 sb1 smbd[4880]:   #4 /lib64/libpthread.so.0(+0xf100)
[0x7f24d2447100]
Feb 10 12:38:11 sb1 smbd[4880]:   #5 /lib64/libc.so.6(gsignal+0x37)
[0x7f24cea7d5f7]
Feb 10 12:38:11 sb1 smbd[4880]:   #6 /lib64/libc.so.6(abort+0x148)
[0x7f24cea7ece8]
Feb 10 12:38:11 sb1 smbd[4880]:   #7 /lib64/libc.so.6(+0x75317)
[0x7f24ceabd317]
Feb 10 12:38:11 sb1 smbd[4880]:   #8 /lib64/libc.so.6(+0x7cfe1)
[0x7f24ceac4fe1]
Feb 10 12:38:11 sb1 smbd[4880]:   #9
/lib64/libglusterfs.so.0(gf_timer_proc+0x251) [0x7f24b75cc961]
Feb 10 12:38:11 sb1 smbd[4880]:   #10 /lib64/libpthread.so.0(+0x7dc5)
[0x7f24d243fdc5]
Feb 10 12:38:11 sb1 smbd[4880]:   #11 /lib64/libc.so.6(clone+0x6d)
[0x7f24ceb3e21d]
Feb 10 12:38:11 sb1 smbd[4880]: [2016/02/10 12:38:11.330887,  0]
../source3/lib/dumpcore.c:318(dump_core)
Feb 10 12:38:11 sb1 smbd[4880]:  dumping core in /var/log/samba/cores/smbd
Feb 10 12:38:11 sb1 smbd[4880]:
Feb 10 12:38:11 sb1 abrt-server: Package 'samba' isn't signed with proper
key
Feb 10 12:38:11 sb1 abrt-server: 'post-create' on
'/var/spool/abrt/ccpp-2016-02-10-12:38:11-4880' exited with 1
Feb 10 12:38:11 sb1 abrt-server: Deleting problem directory
'/var/spool/abrt/ccpp-2016-02-10-12:38:11-4880'

Thanks,
Patrick
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