Re: failed assertion related to realtime section

[Roman Kononov <kononov@ftml.net>]

Olaf Weber wrote:
> Roman Kononov writes:
> 
>> On 2009-07-16 05:02, Olaf Weber wrote:
>>> A quick test on an available system
>>> running a (much) older kernel runs to completion, so this appears to
>>> be a regression.
> 
>> With which kernel version did you run the test?
> 
> Heavily-patched 2.6.16, which is what I had readily available at that
> point.  But most or all of those patches + additional changes should
> be in current XFS.
> 
>>> Figuring out exactly when/where this regressed will take time.
> 
>> I went back to 2.6.23 and the same assfail happened with somewhat
>> different call trace:
> 
>> Assertion failed: xfs_trans_get_block_res(tp) > 0, file:
>> /home/rk/linux-2.6.23/fs/xfs/xfs_bmap.c, line: 5523
> 
>> Call Trace:
>>  [<ffffffff80356a08>] xfs_bunmapi+0x8e8/0x1060
>>  [<ffffffff80227d2a>] dequeue_entity+0x7a/0xb0
>>  [<ffffffff80380608>] xfs_itruncate_finish+0x398/0x5c0
>>  [<ffffffff803a2323>] xfs_free_eofblocks+0x263/0x2b0
>>  [<ffffffff803a4838>] xfs_release+0x118/0x1e0
>>  [<ffffffff803ae42a>] xfs_file_release+0x1a/0x30
>>  [<ffffffff802827cd>] __fput+0xcd/0x1e0
>>  [<ffffffff8027f5c4>] filp_close+0x54/0x90
>>  [<ffffffff80280e3d>] sys_close+0x9d/0x110
>>  [<ffffffff8020bc9e>] system_call+0x7e/0x83
> 
>> I tried to go back to 2.6.22.19 and older, and the test did not run at
>> all failing to mount:
> 
>> XFS: bad version
>> XFS: SB validate failed
> 
>> Any suggestions?
> 
> For that I had the advantage of being able to just build a fresh XFS
> filesystem for the purpose.  If that is what you're doing as well,
> look at disabling the lazy-counters option at mkfs time.
> 

I removed lazy-counters as you suggested, and under 2.6.22.19 it mounts 
successfully. But still crushes in the same place:

Assertion failed: ((tp)->t_blk_res) > 0, file: 
/home/rk/xbase/linux/linux-2.6.22.19/fs/xfs/xfs_bmap.c, line: 5515 


Call Trace: 
 

  [<ffffffff8034ef86>] xfs_bunmapi+0x8e6/0x1050
  [<ffffffff80208042>] __switch_to+0x42/0x310
  [<ffffffff80377dc8>] xfs_itruncate_finish+0x398/0x5c0
  [<ffffffff803989c1>] xfs_inactive_free_eofblocks+0x221/0x260
  [<ffffffff802782c7>] cache_free_debugcheck+0xc7/0x1d0
  [<ffffffff8039aee7>] xfs_release+0xc7/0x110
  [<ffffffff803a497a>] xfs_file_release+0x1a/0x30
  [<ffffffff8027f02d>] __fput+0xcd/0x1e0
  [<ffffffff8027bf54>] filp_close+0x54/0x90
  [<ffffffff8027d68d>] sys_close+0x9d/0x110
  [<ffffffff80209c0e>] system_call+0x7e/0x83

I will try older versions.

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