Re: [PATCH 1/4] MIPS: sgi-ip32: Mask MACE PCI interrupts in CRIME only
From: Thomas Bogendoerfer
Date: Thu Nov 05 2026 - 10:57:27 EST
On Wed, Oct 21, 2026 at 09:24:15PM +0200, Imre Kaloz wrote:
> Masking PCI interrupts in the MACE PCI control register overwrites the
> error and arbitration enables set at init, and a read-modify-write can
> hang CRIME 1.1 machines under DMA load. Enable the slot interrupts once
> and mask them in CRIME.
>
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Imre Kaloz <kaloz@xxxxxxxxxx>
> ---
> arch/mips/pci/pci-ip32.c | 7 ++++--
> arch/mips/sgi-ip32/ip32-irq.c | 45 +++--------------------------------
> 2 files changed, 8 insertions(+), 44 deletions(-)
applied to mips-fixes
Thomas.
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