Reliably trigger-able ZFS panic

[Xin LI]

Pawel Jakub Dawidek wrote:
> On Sun, Mar 02, 2008 at 03:49:03AM -0800, LI Xin wrote:
>> Hi,
>>
>> The following iozone test case on ZFS would reliably trigger panic:
>>
>> /usr/local/bin/iozone -M -e -+u -T -t 128 -S 4096 -L 64 -R -r 4k -s 30g 
>> -i 0 -i 1 -i 2 -i 8 -+p 70 -C
> 
> Thanks, I'll try to reproduce it.
> 
> [...]
> 
>> #19 0x000000000000b55d in z_deflateInit2_ (strm=0xffffff00042dc8e0, 
>> level=70109184, method=68351768,
>>     windowBits=68351600, memLevel=76231808, strategy=76231808, 
>> version=Cannot access memory at address 0xffffffff00040010
>> )
>>     at 
>> /usr/src/sys/modules/zfs/../../contrib/opensolaris/uts/common/zmod/deflate.c:318
> 
> Can you send me your FS configuration? zfs get all your/file/system
> I see that you use compression on this dataset?

It was all default configuration.  The pool was a RAID-Z2 without
hotspare disk.  The box is now running some other tests (not FreeBSD) at
our Beijing Lab and we don't have remote hands in the nights, so I'm
afraid that I will not be able to provide further information at this
moment.  Please let me know if the test run will not provoke the problem
and I will ask them to see if they can spare the box in the weekend for me.

Cheers,
-- 
Xin LI <delphij at delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!