Panic String: solaris assert: (lsize != psize) implies ((flags & ZIO_FLAG_RAW) != 0), file: /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c, line: 631

[Michael Jung]

On 2017-04-28 17:42, Andriy Gapon wrote:
> On 28/04/2017 14:56, Michael Jung wrote:
>> I have mad the requested change..
>> 
>> [root at bsd11 /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs]# 
>> diff zio.c
>> ~mikej/zio.c.orig
>> 965c965
>> <         size, NULL, NULL, ZIO_TYPE_FREE, ZIO_PRIORITY_NOW,
>> ---
>>>         BP_GET_PSIZE(bp), NULL, NULL, ZIO_TYPE_FREE, 
>>> ZIO_PRIORITY_NOW,
> 
> Yes, that's the change that I had in mind.
> I was a little bit confused by the order of the original and modified 
> files,
> though :-)
> 
>> [root at bsd11 /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs]#
>> 
>> As to the pool size:
>> 
>> [root at bsd11 /usr/home/mikej]# zpool list
>> NAME   SIZE  ALLOC   FREE  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  
>> ALTROOT
>> tank   199G   143G  55.9G         -    85%    71%  1.00x  ONLINE  -
>> [root at bsd11 /usr/home/mikej]#
>> 
>> I should have also mentioned that besides poudriere running a build, 
>> it was
>> removing old logs - There was some 43G of old logs files that were in 
>> the process
>> of being removed.
> 
> So, given that the panic was in the freeing path, you were probably low 
> on the
> pool space back when those log files were created.  I mean that the 
> gang blocks
> are typically created when a pool is very fragmented.
> 
>> I will hammer the box with and report back first of the week whether 
>> the panic
>> re-occurs or not.
> 
> Please also try removing those old files again too.
> Running zpool scrub afterwards could be a good idea too.
> 
> Thank you again!

Andriy:

I am happy to report that the system no longer panics.  As requested I 
removed
the remaining logs (34G worth) and punished the file system as hard as I 
could.

A scrub of the pool completed without error

Will the change be committed or do I need to open a PR?

Please let me know if I can supply additional information or if there 
are any
further tests you would like me to perform.

Thanks again for you prompt reply and apparent solution.

Regards,

Michael Jung