Subject: Re: Getting "TLB IPI rendezvous failed..."
To: Stephan Uphoff <email@example.com>
From: Manuel Bouyer <firstname.lastname@example.org>
Date: 01/25/2005 16:52:38
On Sat, Jan 22, 2005 at 09:21:59AM -0500, Stephan Uphoff wrote:
> Could you try the attached patch?
> Please make sure that all your com devices show up.
OK, I finally got around to try it and have interesting results.
First, I tried it yesterday, but the RAID parity was not clean, so raidframe
didn't use both disks. I couldn't get the box to panic.
I tried again today with a clean parity, I got the panic as expected.
I added attitional debug printfs, see the attached patch.
Here is the output:
CPU 0 interrupt level 0xd pending 0x0 depth 1
panic: TLB IPI ...
CPU 0 interrupt level 0xd pending 0x2000c400 depth 1
CPU 1 interrupt level 0x0 pending 0x0 depth 0
So, if I got it right, CPU0 isn't at splipi() at this point, only splhigh().
This isn't the reason why it doesn't get the IPI. Maybe interrupts are
completely disabled (via cli()0 here ?
CPU 1 stack trace:
CPU 0 stack trace:
Manuel Bouyer <email@example.com>
NetBSD: 26 ans d'experience feront toujours la difference