Messages in this thread | | | Date | Wed, 8 Jan 2014 12:40:54 -0800 | Subject | Re: [block:for-3.14/core] kernel BUG at fs/bio.c:1748 | From | Muthu Kumar <> |
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On Wed, Jan 8, 2014 at 12:16 PM, Chris Mason <clm@fb.com> wrote: > On Wed, 2014-01-08 at 11:54 -0800, Muthu Kumar wrote: >> Chris, >> >> [ 8.336061] WARNING: CPU: 0 PID: 0 at fs/bio.c:1778 bio_endio+0xbe/0x100() >> [ 8.336062] bio_endio: bio for (unknown) without endio >> >> This is my recent change to avoid memory leak in bio_endio. But I >> think the problem is higher up, most likely bio_endio is called twice >> on the same bio (which was freed before). >> > > I think these are just two separate problems. Lets ignore the WARN_ON > for now. >
Not really... the BUG that is triggered:
kernel BUG at fs/bio.c:523!
It is in bio_put() (added to bio_endio() as part of recent change) which gets an already freed bio.
>> Are you running the unmodified for-3.14/core or do you have local patches? >> > > It's for-3.14/core with my btrfs branch. Basically rc7 instead of rc6 > but no changes to the block layer. I hadn't mounted btrfs yet. > > -chris >
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