We are running Samba3.0.23b on Redhat ES4 and find that we are getting
quite a few of the release_posix_lock errors appearing in the SAMBA log
(See base of this note). There is no obvious impact on the operation of
the system, but I was wondering if anyone else is experiencing the same
and whether we need to worry about this. We have the default "posix
locking=yes" in operation and I note in the man entry that we "should
never need to disable this parameter". However if we do turn it off, the
errors appear to go away. I suspect though that this means that there is
not full lock integrity on our files?
We are using exactly the same settings with Samba3.0.23b on both Solaris
8 and Solaris 10 and we do not see this problem. Our Redhat system is
fully patched up to date and so is the gcc we are compiling samba with.
See entries from log.smb below.
Andrew
[2006/08/18 08:04:37, 0] lib/util.c:smb_panic(1592)
PANIC (pid 7536): release_posix_lock: unable find entry to delete !
[2006/08/18 08:04:37, 0] lib/util.c:log_stack_trace(1699)
BACKTRACE: 14 stack frames:
#0 /opt/samba/sbin/smbd(log_stack_trace+0x1a) [0x552acab33c]
#1 /opt/samba/sbin/smbd(smb_panic+0x69) [0x552acab1d1]
#2 /opt/samba/sbin/smbd(release_posix_lock+0x11a) [0x552ac64e11]
#3 /opt/samba/sbin/smbd [0x552ac60f86]
#4 /opt/samba/sbin/smbd(brl_unlock+0x46) [0x552ac61a32]
#5 /opt/samba/sbin/smbd(do_unlock+0x164) [0x552ac5e0b1]
#6 /opt/samba/sbin/smbd(reply_lockingX+0x57c) [0x552ab4431f]
#7 /opt/samba/sbin/smbd [0x552ab72a91]
#8 /opt/samba/sbin/smbd [0x552ab72b51]
#9 /opt/samba/sbin/smbd [0x552ab72eb4]
#10 /opt/samba/sbin/smbd(smbd_process+0x140) [0x552ab73caa]
#11 /opt/samba/sbin/smbd(main+0x894) [0x552ad4045a]
#12 /lib64/tls/libc.so.6(__libc_start_main+0xdb) [0x2a96b883fb]
#13 /opt/samba/sbin/smbd [0x552ab078fa]
[2006/08/18 08:04:37, 0] lib/fault.c:dump_core(168)
unable to change to /opt/samba/var/log.smb/cores/smbdrefusing to dump core
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