[wellylug] CentOS 5.1 update warning

[Jethro Carr]

hi all,

For those of you who use CentOS 5.5 (or RHEL) beware, that there may be
a problem with Samba and Xen.

Make sure you update a development machine before taking 5.1 into
production. If you don't have a development machine, I suggest you wait
a bit before deploying or deploy with care.


1) SAMBA

After upgrading from 5.0 to 5.1, Samba would crash and do a backtrace
and dump whenever my Linux PC tried to access the samba share. Log
output is attached for anyone interested.

Interestingly, the Samba share functioned okay for a WinXP machine.

Downgrading to the samba package to samba-3.0.23c-2.el5.2.0.2 (CentOS)
5.0 resolved the issue for me.

This was experienced on a x86_64 machine, so I'm going to double check
the samba problem on an i386 instance.



2) XEN

I had very weird behaviour from Xen, where it would refuse to start any
DomUs, complaining about the vir0

After much debugging it suddenly started working, so I will need to
check this out further.



cheers,

-- 
Jethro Carr

www.jethrocarr.com
www.jethrocarr.com/index.php?cms=blog

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samba-3.0.23c-2.el5.2.0.2 is okay (centos 5.0)


Dec  6 20:25:21 jessie smbd[5670]: [2007/12/06 20:25:21, 0] lib/util.c:smb_panic(1654)
Dec  6 20:25:21 jessie smbd[5670]:   PANIC (pid 5670): push_ascii - dest_len == -1
Dec  6 20:25:21 jessie smbd[5670]: [2007/12/06 20:25:21, 0] lib/util.c:log_stack_trace(1758)
Dec  6 20:25:21 jessie smbd[5670]:   BACKTRACE: 12 stack frames:
Dec  6 20:25:21 jessie smbd[5670]:    #0 smbd(log_stack_trace+0x1c) [0x555555776e8c]
Dec  6 20:25:21 jessie smbd[5670]:    #1 smbd(smb_panic+0x43) [0x555555776f73]
Dec  6 20:25:21 jessie smbd[5670]:    #2 smbd(push_ascii+0x113) [0x555555762a13]
Dec  6 20:25:21 jessie smbd[5670]:    #3 smbd [0x5555556047b2]
Dec  6 20:25:21 jessie smbd[5670]:    #4 smbd [0x555555607033]
Dec  6 20:25:21 jessie smbd[5670]:    #5 smbd(handle_trans2+0x25e) [0x55555560a2ae]
Dec  6 20:25:21 jessie smbd[5670]:    #6 smbd(reply_trans2+0x6dc) [0x55555561090c]
Dec  6 20:25:21 jessie smbd[5670]:    #7 smbd [0x555555629524]
Dec  6 20:25:21 jessie smbd[5670]:    #8 smbd(smbd_process+0x7b1) [0x55555562a4c1]
Dec  6 20:25:21 jessie smbd[5670]:    #9 smbd(main+0xa20) [0x55555582b510]
Dec  6 20:25:21 jessie smbd[5670]:    #10 /lib64/libc.so.6(__libc_start_main+0xf4) [0x2aaaad3818a4]
Dec  6 20:25:21 jessie smbd[5670]:    #11 smbd [0x5555555bbfe9]
Dec  6 20:25:21 jessie smbd[5670]: [2007/12/06 20:25:21, 0] lib/fault.c:dump_core(181)
Dec  6 20:25:21 jessie smbd[5670]:   dumping core in /var/log/samba/cores/smbd
Dec  6 20:25:21 jessie smbd[5670]:
Dec  6 20:25:25 jessie smbd[5691]: [2007/12/06 20:25:25, 0] lib/util.c:smb_panic(1654)
Dec  6 20:25:25 jessie smbd[5691]:   PANIC (pid 5691): push_ascii - dest_len == -1
Dec  6 20:25:25 jessie smbd[5691]: [2007/12/06 20:25:25, 0] lib/util.c:log_stack_trace(1758)
Dec  6 20:25:25 jessie smbd[5691]:   BACKTRACE: 12 stack frames:
Dec  6 20:25:25 jessie smbd[5691]:    #0 smbd(log_stack_trace+0x1c) [0x555555776e8c]
Dec  6 20:25:25 jessie smbd[5691]:    #1 smbd(smb_panic+0x43) [0x555555776f73]
Dec  6 20:25:25 jessie smbd[5691]:    #2 smbd(push_ascii+0x113) [0x555555762a13]
Dec  6 20:25:25 jessie smbd[5691]:    #3 smbd [0x5555556047b2]
Dec  6 20:25:25 jessie smbd[5691]:    #4 smbd [0x555555607033]
Dec  6 20:25:25 jessie smbd[5691]:    #5 smbd(handle_trans2+0x25e) [0x55555560a2ae]
Dec  6 20:25:25 jessie smbd[5691]:    #6 smbd(reply_trans2+0x6dc) [0x55555561090c]
Dec  6 20:25:25 jessie smbd[5691]:    #7 smbd [0x555555629524]
Dec  6 20:25:25 jessie smbd[5691]:    #8 smbd(smbd_process+0x7b1) [0x55555562a4c1]
Dec  6 20:25:25 jessie smbd[5691]:    #9 smbd(main+0xa20) [0x55555582b510]
Dec  6 20:25:25 jessie smbd[5691]:    #10 /lib64/libc.so.6(__libc_start_main+0xf4) [0x2aaaad3818a4]
Dec  6 20:25:25 jessie smbd[5691]:    #11 smbd [0x5555555bbfe9]
Dec  6 20:25:25 jessie smbd[5691]: [2007/12/06 20:25:25, 0] lib/fault.c:dump_core(181)
Dec  6 20:25:25 jessie smbd[5691]:   dumping core in /var/log/samba/cores/smbd
Dec  6 20:25:25 jessie smbd[5691]:


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