On Mon, 2015-04-06 at 23:33 -0700, Christoph Hellwig wrote:
> Hi Dan,
>
> it seems like the MISCOMPARE case of COMPARE AND WRITE has been broken
> for quite a while.
>
> See my post from March 30 ("hang during COMPARE AND SWAP", which shows a
> similar issues using a synthetic test suite.
Not exactly. The one you reported earlier is a bug specific to loopback
and vhost with COMPARE_AND_WRITE, and AFAICT has always been broken.
I'm working on a patch for that now..
>From what I can gather from Dan's log with qla2xxx, a MISCOMPARE occurs
in compare_and_write_callback(), followed up by an ABORT_TASK. This is
not what's happening with loopback.
Dan, can you confirm which kernel version you where previously using
qla2xxx target mode with Ubuntu 11.04..?
Thanks,
--nab
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