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Re: kern/49305: deadlocks on sparc64 SMP
The following reply was made to PR kern/49305; it has been noted by GNATS.
From: Martin Husemann <martin%duskware.de@localhost>
To: Mindaugas Rasiukevicius <rmind%netbsd.org@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, kern-bug-people%netbsd.org@localhost,
gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost, macallan%netbsd.org@localhost
Subject: Re: kern/49305: deadlocks on sparc64 SMP
Date: Sun, 9 Nov 2014 17:16:01 +0100
On Sun, Nov 09, 2014 at 03:13:21PM +0000, Mindaugas Rasiukevicius wrote:
> Unlikely to be pcq(9). Most likely this is related to software interrupts
> or IPIs on sparc64, see softint_schedule_cpu(9). Unfortunately, I do not
> have time to look into sparc64 MD code right now.
Possible, but why does the "always use the other cpu for softint processing"
version not trigger it?
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