From: Finn Thain <fthain@linux-m68k.org>
To: Michael Schmitz <schmitzmic@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>,
Geert Uytterhoeven <geert@linux-m68k.org>,
linux-m68k@lists.linux-m68k.org
Subject: Re: spinlock recursion when running q800 emulation in qemu
Date: Sat, 9 Mar 2024 16:02:52 +1100 (AEDT) [thread overview]
Message-ID: <fbc5d581-dcad-8627-3a19-6e2d10614870@linux-m68k.org> (raw)
In-Reply-To: <bd6eb981-0dfe-a9c9-7777-0cfa0703efc0@gmail.com>
On Sat, 9 Mar 2024, Michael Schmitz wrote:
>
> I notice legacy_timer_tick() states it must be called with interrupts
> disabled. We do not explicitly do that in via_timer_handler(), but rely
> on the IPL remaining high. Maybe adding local_irq_save(flags) /
> local_irq_restore(flags) around the legacy_timer_tick() call would help
> debug this?
>
If legacy_timer_tick() is sensitive to execution context, why not test the
IPL with an assertion? That way you can catch that problem on Aranym as
well as Qemu.
next prev parent reply other threads:[~2024-03-09 5:02 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-04 17:58 spinlock recursion when running q800 emulation in qemu Guenter Roeck
2024-03-05 0:33 ` Finn Thain
2024-03-05 0:48 ` Michael Schmitz
[not found] ` <fcb506f2-523d-4efc-ae3d-fe3c79c6f09e@gmail.com>
2024-03-05 0:58 ` Guenter Roeck
2024-03-05 1:06 ` Michael Schmitz
2024-03-06 7:14 ` Michael Schmitz
2024-03-06 8:30 ` Brad Boyer
2024-03-06 23:13 ` Finn Thain
2024-03-06 23:46 ` Guenter Roeck
2024-03-07 23:35 ` Finn Thain
2024-03-06 23:42 ` Michael Schmitz
2024-03-06 23:52 ` Finn Thain
2024-03-08 0:20 ` Michael Schmitz
2024-03-08 0:56 ` Finn Thain
2024-03-08 8:06 ` Michael Schmitz
2024-03-08 9:15 ` Finn Thain
2024-03-08 9:33 ` Finn Thain
2024-03-08 20:14 ` Michael Schmitz
2024-03-09 5:02 ` Finn Thain [this message]
2024-03-09 20:56 ` Michael Schmitz
2024-03-09 22:18 ` Finn Thain
2024-03-11 7:06 ` Michael Schmitz
2024-03-11 8:35 ` Finn Thain
2024-03-12 0:51 ` Michael Schmitz
2024-03-12 7:59 ` Geert Uytterhoeven
2024-03-12 20:14 ` Michael Schmitz
2024-03-13 0:16 ` Michael Schmitz
2024-03-13 4:39 ` Preemption (was: Re: spinlock recursion when running q800 emulation in qemu) Michael Schmitz
2024-03-13 4:40 ` spinlock recursion when running q800 emulation in qemu Finn Thain
2024-03-13 5:34 ` Michael Schmitz
2024-03-14 0:59 ` Michael Schmitz
2024-03-15 4:32 ` Michael Schmitz
2024-03-15 7:24 ` Finn Thain
2024-03-18 6:24 ` Michael Schmitz
2024-03-18 9:31 ` Finn Thain
2024-03-20 1:00 ` Michael Schmitz
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