Re: mvsas panics and dies when attached to a port extender on newer kernels

[Ceriel Jacobs <linux-scsi@crashplan.pro>]

Your mvsas port expander bug might be related to bug# 81861

https://bugzilla.kernel.org/show_bug.cgi?id=81861

Adam Talbot schreef op 13-04-15 om 17:11:
> To make a very long debugging story short, I think there is an issues/bug
> with the mvsas driver. It works, with older kernels, and breaks on
> newer kernels.
>
> My Debian Jessie system was running great on a 3.18 kernel.  Changed
> cases to a newer supermicro case with a SAS expander backplane (SAS933EL).  That
> was the only hardware change.  Now, when ever I boot, the system kernel panics.
>
> 3.2.65-1+deb7u2 works
> 3.9.0 Gentoo CD works
> 3.16+ all fail
> Attached are 3 kernel panics on 3.16+ kernels.
>
> Motherboard is a Supermicro X8SIE, with a "Marvell Technology Group Ltd.
> 88SE6440 SAS/SATA PCIe controller"
>
> Is this a known bug?
>
> At this point I have two options:
> Stick with the old kernel (yuck)
> Buy a new card running a better supported chipset
>
> Any help would be greatly appreciated
> Thanks
> Adam
>