Re: [PATCH 25/20] sysfs: Only support removing emtpy sysfs directories.

From: Kay Sievers
Date: Tue May 26 2009 - 12:28:04 EST

On Mon, May 25, 2009 at 13:45, Kay Sievers <kay.sievers@xxxxxxxx> wrote:
> On Mon, May 25, 2009 at 04:06, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:

>> by the way -- so it's a little difficult to trigger.
> I can trigger it pretty reliable now on plain -rc7 , but only with
> more hubs in-between the storage device. It usually take less than
> 10-15 connect/disconnect cycles.
> It looks like a serious bug though, after the bug triggered, random,
> likely unrelated, applications crash, and I can not cleanly shot down
> anymore.

Just a heads up if anybody is trying to reproduce this, it trashed my
ext3 rootfs, which is not recoverable.

Not sure what exactly caused this, but I didn't have anything like
this for a very long time.

I tried to reproduce the issue a few times more, and it crashed random
processes after the bug triggered, like mentioned above, and the box
never shut down cleanly.

It's entirely possible, that bug causes serious issues.

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