Re: FreeBSD 7.1-PRERELEASE-p1, panic: dqget: free dquot isn't

On Wed, Dec 03, 2008 at 06:03:26PM +0100, Frode Nordahl wrote:
> Hello,
> 
> I have a server with FreeBSD 7.1-PRERELEASE-p1 amd64 on it. Upgraded  
> from a 7.0-RELEASE system using freebsd-update.
> 
> It's a DELL PE2950 with E5420 Quad Core 2.50GHz processor, 4 GB RAM,  
> using DELL PERC 6 RAID card (mfi0).
> 
> The system is running a custom kernel to get quota support.
> 
> During some tests which involved removing a large number of files  
> simultaneously (ran 20+ copies of rm -rf), it paniced with this  
> message: dqget: free dquot isn't
> 
> Output from DDB, kernel config and dmesg is attached. I also secured a  
> crashdump, so further queries using kgdb is possible.
> 
> --
> Frode Nordahl
> 
> 

> db> where
> Tracing pid 41111 tid 100199 td 0xffffff0056f1f370
> kdb_enter_why() at kdb_enter_why+0x3d
> panic() at panic+0x17b
> dqget() at dqget+0xaa4
> getinoquota() at getinoquota+0x5b
> ufs_access() at ufs_access+0x28c
> ufs_lookup() at ufs_lookup+0x9fe
> vfs_cache_lookup() at vfs_cache_lookup+0xf8
> VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0x40
> lookup() at lookup+0x531
> namei() at namei+0x35d
> kern_rmdir() at kern_rmdir+0xbd
> syscall() at syscall+0x256
> Xfast_syscall() at Xfast_syscall+0xab

For the start, I want to see the content of the *dq in the dqget()
frame.