Date: Fri, 27 Feb 2009 17:30:06 +0300 From: Sergey G Nasonov <snasonov@bcc.ru> To: freebsd-current@freebsd.org Subject: Interrupt stom on cardbus device Message-ID: <200902271730.07660.snasonov@bcc.ru>
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Hello all,
I have get an issue after recent kernel recompile.
The problem appears after switch from X to text console and back to X11.
After that vmstat -i show an interrupt storm on cardbus device:
> vmstat -i
interrupt total rate
irq1: atkbd0 6483 3
irq9: acpi0 3236 1
irq12: psm0 347988 167
irq14: ata0 16431 7
irq16: cbb0 uhci2+ 13624982 6556
irq20: uhci0 14 0
irq22: ehci0 2 0
cpu0: timer 4154687 1999
irq256: em0 53736 25
irq257: hdac0 5797 2
cpu1: timer 4153683 1998
irq258: vgapci0 235585 113
Total 22602624 10877
I suppose that the issue related with the latest MSI interrupt
handler changes for intel graphics chipset. My laptop has i965GM.
pciconf -lv:
vgapci0@pci0:0:2:0: class=0x030000 card=0x20b517aa chip=0x2a028086
rev=0x0c hdr=0x00
vendor = 'Intel Corporation'
device = 'Mobile 965 Express Integrated Graphics Controller'
class = display
subclass = VGA
When I added my device to drm_msi_blacklist and recompile drm modules the
problem disappear.
Is it possible to resolve this problem without moving the device to the
drm_msi_blacklist?
I can test any patches or provide additional detail if it is required.
Thanks.
--
Best Regards,
Nasonov Sergey
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