* igb patches needed for stable
@ 2014-04-10 12:36 Thomas Petazzoni
2014-05-13 7:59 ` Thomas Petazzoni
0 siblings, 1 reply; 2+ messages in thread
From: Thomas Petazzoni @ 2014-04-10 12:36 UTC (permalink / raw)
To: Christoph Paasch, Carolyn Wyborny, Jeff Pieper, Jeff Kirsher
Cc: netdev, David Miller
Hello,
I just wanted to let you know that the following two patches:
cb06d102327eadcd1bdc480bfd9f8876251d1007 igb: Fix Null-pointer dereference in igb_reset_q_vector
b709323d2477614823a38c2f2a9a206e087e28fc igb: Unset IGB_FLAG_HAS_MSIX-flag when falling back to msi-only
should probably be backported to stable 3.14 versions. The above
patches are part of Linus tree, but merged after v3.14 has been
released. However, they fix a regression introduced by cd14ef54d25b
(igb: Change to use statically allocated array for MSIx entries), which
is part of v3.14.
And I'm actually experiencing a crash igb_reset_q_vector() on a system
which has MSI support, but not MSI-X support, and basically the code
path of the driver which fallbacks from MSI-X to MSI is the one
crashing. With both of these patches applied on top of 3.14, my igb NIC
works fine.
Best regards,
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: igb patches needed for stable
2014-04-10 12:36 igb patches needed for stable Thomas Petazzoni
@ 2014-05-13 7:59 ` Thomas Petazzoni
0 siblings, 0 replies; 2+ messages in thread
From: Thomas Petazzoni @ 2014-05-13 7:59 UTC (permalink / raw)
To: Christoph Paasch, Carolyn Wyborny
Cc: Jeff Pieper, Jeff Kirsher, netdev, David Miller
Hello,
On Thu, 10 Apr 2014 14:36:03 +0200, Thomas Petazzoni wrote:
> Hello,
>
> I just wanted to let you know that the following two patches:
>
> cb06d102327eadcd1bdc480bfd9f8876251d1007 igb: Fix Null-pointer dereference in igb_reset_q_vector
> b709323d2477614823a38c2f2a9a206e087e28fc igb: Unset IGB_FLAG_HAS_MSIX-flag when falling back to msi-only
>
> should probably be backported to stable 3.14 versions. The above
> patches are part of Linus tree, but merged after v3.14 has been
> released. However, they fix a regression introduced by cd14ef54d25b
> (igb: Change to use statically allocated array for MSIx entries), which
> is part of v3.14.
>
> And I'm actually experiencing a crash igb_reset_q_vector() on a system
> which has MSI support, but not MSI-X support, and basically the code
> path of the driver which fallbacks from MSI-X to MSI is the one
> crashing. With both of these patches applied on top of 3.14, my igb NIC
> works fine.
Any news about these patches?
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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