Jorgen Lundman wrote:
> On Saturday the X4500 system paniced, and rebooted. For some reason the 
> /export/saba1 UFS partition was corrupt, and needed "fsck". This is why 
> it did not come back online. /export/saba1 is mounted "logging,noatime", 
> so fsck should never (-ish) be needed.
> 
> SunOS x4500-01.unix 5.11 snv_70b i86pc i386 i86pc
> 
> /export/saba1 on /dev/zvol/dsk/zpool1/saba1 
> read/write/setuid/devices/intr/largefiles/logging/quota/xattr/noatime/onerror=panic/dev=2d80024
>  
> on Sat Jul  5 08:48:54 2008
> 
> 
> One possible related bug:
> 
> http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=4884138

Yes, that bug is possibly related. However, the panic stacks listed
in it do not match yours.

> What would be the best solution? Go back to latest Solaris 10 and pass 
> it on to Sun support, or find a patch for this problem?

Since the panic stack only ever goes through ufs, you should
log a call with Sun support.
...
>  > ::msgbuf
> quota_ufs: over hard disk limit (pid 600, uid 178199, inum 941499, fs 
> /export/zero1)
> quota_ufs: over hard disk limit (pid 600, uid 33647, inum 29504134, fs 
> /export/zero1)
> 
> panic[cpu0]/thread=ffffff001e737c80:
> dqput: dqp->dq_cnt == 0
> 
> 
> ffffff001e737930 genunix:vcmn_err+28 ()
> ffffff001e737980 ufs:real_panic_v+f7 ()
> ffffff001e7379e0 ufs:ufs_fault_v+1d0 ()
> ffffff001e737ad0 ufs:ufs_fault+a0 ()
> ffffff001e737b00 ufs:dqput+ce ()
> ffffff001e737b30 ufs:dqrele+48 ()
> ffffff001e737b70 ufs:ufs_trans_dqrele+6f ()
> ffffff001e737bc0 ufs:ufs_idle_free+16d ()
> ffffff001e737c10 ufs:ufs_idle_some+152 ()
> ffffff001e737c60 ufs:ufs_thread_idle+1a1 ()
> ffffff001e737c70 unix:thread_start+8 ()

Although.... given the entry in the msgbuf, perhaps
you might want to fix up your quota settings on that
particular filesystem.



James C. McPherson
--
Senior Kernel Software Engineer, Solaris
Sun Microsystems
http://blogs.sun.com/jmcp       http://www.jmcp.homeunix.com/blog
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