Re: assertion "(l->l_pflag & LP_INTR) == 0" failed

To: Taylor R Campbell <campbell+netbsd-tech-kern%mumble.net@localhost>
Subject: Re: assertion "(l->l_pflag & LP_INTR) == 0" failed
From: Emmanuel Dreyfus <manu%netbsd.org@localhost>
Date: Thu, 20 Oct 2022 12:56:13 +0000

On Thu, Oct 20, 2022 at 11:14:50AM +0000, Taylor R Campbell wrote:
> This happen because xbd_handler tries to free something which it got
> with VM_NOSLEEP.  In interrupt context, either

FWIW, the backtrace:

vpanic() at netbsd:vpanic+0x143
kern_assert() at netbsd:kern_assert+0x48
pmap_update() at netbsd:pmap_update+0xb9
uvm_km_kmem_free() at netbsd:uvm_km_kmem_free+0x3d
xbd_handler() at netbsd:xbd_handler+0x347
xen_intr_biglock_wrapper() at netbsd:xen_intr_biglock_wrapper+0x1d
Xresume_xenev6() at netbsd:Xresume_xenev6+0x49


-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost

References:
- assertion "(l->l_pflag & LP_INTR) == 0" failed
  - From: Emmanuel Dreyfus
- Re: assertion "(l->l_pflag & LP_INTR) == 0" failed
  - From: Taylor R Campbell

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