Messages in this thread | | | Date | Wed, 26 Nov 2008 10:01:47 +0100 | From | Eric Dumazet <> | Subject | Re: [BUG] linux-2.6.28-rc3 regression: IRQ smp_affinities not respected |
| |
Eric Dumazet a écrit : > Michael Chan a écrit : >> I believe this may be the patch that broke it: >> >> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ce6fce4295ba727b36fdc73040e444bd1aae64cd >> >> >> I don't remember all the details, but the Broadcom 5708 chip is >> affected because it does not support MSI per-vector masking. >> >> One way to get around is to disable MSI with bnx2 parameter >> disable_msi=1. >>
> > I tried this MSI disabling and yes, it now works. > > 16: 42726 128 105 106 89 > 89 145 152 IO-APIC-fasteoi uhci_hcd:usb1, eth0, eth1 >
I believe the bnx2 driver doesnt work at all if !disable_msi (default setting)
Doing a "echo 0 >/sys/devices/system/cpu/cpu1/online" just freeze network
No messages logged
If loaded with disable_msi=1, the cpu unplug works as expected.
Thats a pretty serious issue.
-- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |