linux-kernel - Re: mkfs.f2fs gets stuck with "blk_update

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Date:	Mon, 1 Apr 2013 23:27:10 +0400
From:	Vyacheslav Dubeyko <slava@...eyko.com>
To:	Max Filippov <jcmvbkbc@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Jaegeuk Kim <jaegeuk.kim@...sung.com>,
	Jens Axboe <axboe@...nel.dk>
Subject: Re: mkfs.f2fs gets stuck with "blk_update_request: bio idx 0 >= vcnt 0" on 3.8


On Apr 1, 2013, at 9:19 PM, Max Filippov wrote:

> Hi,
> 
> I'm trying to create f2fs filesystem on SD card on pandaboard using
> f2fs-tools v1.0.0.
> It works fine on Linus' v3.6, but fails on both v3.8 and stable v3.8.5:
> 
> # mkfs.f2fs /dev/mmcblk0p3
> Info: sector size = 512
> Info: total sectors = 11370496 (in 512bytes)
> Info: zone aligned segment0 blkaddr: 512
> [  257.789764] blk_update_request: bio idx 0 >= vcnt 0
> 
> mkfs process gets stuck in D state and I see the following in the dmesg:
> 
> [  257.789733] __end_that: dev mmcblk0: type=1, flags=122c8081
> [  257.789764]   sector 4194304, nr/cnr 2981888/4294959104
> [  257.789764]   bio df3840c0, biotail df3848c0, buffer   (null), len 1526726656
> [  257.789764] blk_update_request: bio idx 0 >= vcnt 0
> [  257.794921] request botched: dev mmcblk0: type=1, flags=122c8081
> [  257.794921]   sector 4194304, nr/cnr 2981888/4294959104
> [  257.794921]   bio df3840c0, biotail df3848c0, buffer   (null), len 1526726656
> 
> I'd appreciate any suggestion on what to try before I try to bisect it.
> 

Could you share "cat /proc/partitions" and "strace mkfs.f2fs /dev/mmcblk0p3" outputs? I think that these outputs can be very useful for issue analysis.

By the way, can you reproduce the issue on another SD-card? Do you reproduce the issue only under pandaboard?

Thanks,
Vyacheslav Dubeyko.

> -- 
> Thanks.
> -- Max
> --
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