Re: [PATCH] fs-writeback: fix NULL pointer dereference in __mark_inode_dirty

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Dear Jason A. Donenfeld,

Am 02.03.2011 09:35, schrieb Andreas Bießmann:
> Dear Jason A. Donenfeld,
> 
> Am 01.03.2011 10:00, schrieb Jason A. Donenfeld:
>> Can you make an isolated test case to trigger this bug?
> 
> in my case it is easily reproduceable. I have an SD-card in our embedded
> device (AVR32 AP7000). Some random data is continuously written to an
> FAT filesystem on that device. When you pull the card out of the slot
> you trigger that NULL pointer dereference.
> 
> I will try to reproduce that error on my workstation but this will need
> some time. Maybe I can not hit that race on my quad core workstation but
> I will give it a try.

unfortunately I can not reproduce this error on my workstation. I tested
an 35 in 1 USB card reader and a single USB stick.
I will try to test on another architecture uniprocessor system (e.g. one
of our ARM eval boards).

regards

Andreas Bießmann
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