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2.4.0-pre10 Hard lockup writing to fs on loop devices

DISCUSSION First Name Last Name 2 participants 2 messages Jan 25, 2001

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#0 lore raw

I am seeing hard lockup without OOPS when I write 60-40MB into a filesystem created on a regular file via loop device, and the problem is quite reproducible. Is anybody else suffering from a similar problem?

# mount | grep export/scratch
/dev/hda9 on /export/scratch type ext2 (rw)
# dd if=/dev/zero of=/export/scratch/F bs=1M count=420
# echo yes | mke2fs /export/scratch/F
# mount -o loop /export/scratch/F /mnt
# tar cf - . | ( cd /mnt && tar xfp - )

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#1 lore raw
Quoted 4 lines · First Name Last Name

I am seeing hard lockup without OOPS when I write 60-40MB into a filesystem created on a regular file via loop device, and the problem is quite reproducible. Is anybody else suffering from a similar problem?

Yes, at least judging by the emails I've gotten about it at least several others are seeing this too. And I can reproduce it here. I'm working on the next patch, the last one still had a deadlock.

Signature · 6 lines
* Jens Axboe <[email protected]>
* SuSE Labs
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