Re: kernel BUG at fs/f2fs/node.c:LINE!

From: Dmitry Vyukov
Date: Tue Apr 24 2018 - 10:28:34 EST

On Tue, Apr 24, 2018 at 8:42 AM, syzbot
<syzbot+d154ec99402c6f628887@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> Hello,
> syzbot tried to test the proposed patch but build/boot failed:
> failed to create VM pool: failed to create GCE image: failed to get create
> image operation operation-1524552040215-56a926ecc71d9-3edfeb8b-8abca81c:
> googleapi: Error 403: Rate Limit Exceeded, rateLimitExceeded
> Tested on git://
> commit
> b549e322861b99f1862fb5f08dfb5e5753a38635 (Sat Apr 21 06:44:59 2018 +0000)
> f2fs: check cap_resource only for data blocks
> compiler: gcc (GCC) 8.0.1 20180413 (experimental)
> Patch:
> Kernel config:

Hi Jaegeuk,

Re the last failure (rate limiting), now should be fixed with:
which adds some backoff-and-retry logic.

Re the first one, do I understand it correctly that dev-test already
contains the fix that you want to test?
We did not foresee such case initially, but you are not the first one
to try this. I've added support for testing without a patch now:
and updated the docs:

So now this should work:

#syz test: git://