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Re: fsr stucks in D-state

To: xfs@xxxxxxxxxxx
Subject: Re: fsr stucks in D-state
From: Marvin <marvin24@xxxxxx>
Date: Tue, 2 Jun 2009 08:30:18 +0200
In-reply-to: <200906011233.39721.marvin24@xxxxxx>
References: <200906011233.39721.marvin24@xxxxxx>
User-agent: KMail/1.11.2 (Linux/2.6.30-rc7; KDE/4.2.2; x86_64; ; )
Hi again,

On Monday 01 June 2009 12:33:39 Marvin wrote:
> Hi,
>
> I observed a hang in D-state when using xfs_fsr.
>
> - xfsprogs is from git (3.0.2)
> - kernel also (2.6.30-rc7...)

I pulled from "git://oss.sgi.com/xfs/xfs for-linus", which seems to include 
some deadlock fixes. Now, fsr no longer deadlocks, so this seems to be fixed. 
Sorry for the noise.

Marvin


> I tried 2.6.29.4 and it worked flawless. Machine is powerpc32.
>
> Here is the sysrq-t trace:
>
> xfs_fsr       D 480f7f3c     0  4211   4210
> Call Trace:
> [d1adfc40] [00001032] 0x1032 (unreliable)
> [d1adfd00] [c0008dd8] __switch_to+0x4c/0x6c
> [d1adfd20] [c02c5294] __schedule+0x230/0x360
> [d1adfd70] [c02c53ec] schedule+0x28/0x54
> [d1adfd80] [c02c7964] rwsem_down_failed_common+0x104/0x25c
> [d1adfdb0] [c02c7ae4] rwsem_down_write_failed+0x28/0x40
> [d1adfde0] [c02c6994] down_write+0x30/0x40
> [d1adfdf0] [c012399c] xfs_ilock+0x9c/0xa0
> [d1adfe00] [c014375c] xfs_inactive+0x2e8/0x48c
> [d1adfe40] [c015113c] xfs_fs_clear_inode+0x40/0x50
> [d1adfe50] [c00ab764] clear_inode+0x68/0xec
> [d1adfe60] [c00ac02c] generic_delete_inode+0x16c/0x170
> [d1adfe80] [c00aaf20] iput+0x70/0x90
> [d1adfe90] [c00a7424] dentry_iput+0xc8/0x154
> [d1adfeb0] [c00a75e0] d_kill+0x50/0x8c
> [d1adfed0] [c00a80cc] dput+0x110/0x210
> [d1adfef0] [c0095b50] __fput+0x178/0x204
> [d1adff10] [c0091eec] filp_close+0x6c/0xa0
> [d1adff30] [c0091fd4] sys_close+0xb4/0x124
> [d1adff40] [c0011fc4] ret_from_syscall+0x0/0x38
> --- Exception: c01 at 0x480f7f3c
>     LR = 0x1000397c
>
> Greetings
>
> Marvin

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