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SubjectRe: aacraid: kernel: AAC: Host adapter dead -1 (bisected)
On Fri, Feb 10, 2017 at 01:45:06PM +0300, Andrey Melnikov wrote:
> Cc: linux-scsi@vger.kernel.org
>
> 2017-02-10 13:24 GMT+03:00 Greg Kroah-Hartman <gregkh@linuxfoundation.org>:
> > On Fri, Feb 10, 2017 at 02:25:26AM +0300, Andrey Jr. Melnikov wrote:
> >> In article <201701151205.37563.a.miskiewicz@gmail.com> you wrote:
> >> > Newsgroups: gmane.linux.kernel
> >>
> >>
> >> > Hi.
> >>
> >> > There is a bug with handling of adaptec raid cards (in my case it is Adaptec
> >> > 3405) where kernel logs hundreds of "AAC: Host adapter dead -1" messages.
> >>
> >> > Bug was reported previously on lkml but there was no progres in solving it.
> >>
> >> > There is also bugzilla entry:
> >> > https://bugzilla.kernel.org/show_bug.cgi?id=151661
> >>
> >> > I've bisected that to commit bellow and indeed, reverting it from kernel 4.9.3
> >> > makes messages go away.
> >>
> >>
> >> Don't try to switch Adaptec 3405/3805 RAID cards to MSI-X interrupt mode.
> >> Fix https://bugzilla.kernel.org/show_bug.cgi?id=151661
> >>
> >> Signed-off-by: Andrey Jr. Melnikov <temnota.am@gmail.com>
> >>
> >> ---
> >>
> >> diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
> >> index 969c312de1be..2ad8403dea40 100644
> >> --- a/drivers/scsi/aacraid/aacraid.h
> >> +++ b/drivers/scsi/aacraid/aacraid.h
> >
> > <snip>
> >
> > Why are you sending this to me and not the scsi developers who can
> > actually do something with this patch?
>
> Bug in bugzilla open half year ago, microsemi maintainer slowly read
> his fine docs about his hardware, broken driver fills our log with
> useless messages every 10 seconds.
> So, make decision - apply this patch to stable 4.9.x/4.4.x tree or
> revert commit 78cbccd3bd683c295a44af8050797dc4a41376ff from it.

I don't understand, that's not how the stable kernels work, please read
Documentation/stable_kernel_rules.txt for how the process works. Please
get a patch accepted into Linus's tree and then we will be glad to apply
it to the stable kernel trees.

thanks,

greg k-h

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