Re: [PATCH] NFS regression in 2.6.26?, "task blocked for more than120 seconds"
From: Cyrill Gorcunov
Date: Mon Oct 20 2008 - 10:21:20 EST
[Glauber Costa - Mon, Oct 20, 2008 at 11:15:56AM -0200]
| On Mon, Oct 20, 2008 at 4:51 AM, Max Kellermann <mk@xxxxxxxxxx> wrote:
| > On 2008/10/17 16:33, Glauber Costa <glommer@xxxxxxxxxx> wrote:
| >> That's probably something related to apic congestion.
| >> Does the problem go away if the only thing you change is this:
| >> > @@ -891,11 +897,6 @@ do_rest:
| >> > store_NMI_vector(&nmi_high, &nmi_low);
| >> >
| >> > smpboot_setup_warm_reset_vector(start_ip);
| >> > - /*
| >> > - * Be paranoid about clearing APIC errors.
| >> > - */
| >> > - apic_write(APIC_ESR, 0);
| >> > - apic_read(APIC_ESR);
| >> > }
| >> Please let me know.
| > Hello Glauber,
| > I have rebooted the server with 22.214.171.124 + this patchlet an hour ago.
| > No problems since.
| > Hardware: Compaq P4 Xeon server, Broadcom CMIC-WS / CIOB-X2 board.
| > Tell me if you need more detailed information.
| There's a patch in flight from cyrill that probably fixes your problem:
| The checks are obviously there for a reason, and we can't just wipe
| them out unconditionally ;-) So can you check please that you are also
| covered by the case provided?
Actually I'll wonder if it help. Do Xeon processors really not
have ESR register and not integrated?
- Cyrill -
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