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Date:      Tue, 07 Jun 2005 20:10:51 +0800
From:      Xin LI <delphij@frontfree.net>
To:        Frode Nordahl <frode@nordahl.net>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: propagate_priority panic
Message-ID:  <1118146251.755.4.camel@spirit>
In-Reply-To: <2D2A5D81-9E95-4D83-B479-D61BBB39C25F@nordahl.net>
References:  <2D2A5D81-9E95-4D83-B479-D61BBB39C25F@nordahl.net>

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Hi, Frode,

=E5=9C=A8 2005-06-07=E4=BA=8C=E7=9A=84 09:32 +0200=EF=BC=8CFrode Nordahl=E5=
=86=99=E9=81=93=EF=BC=9A
> Dear colleagues,
[snip]
> db> trace
> Tracing pid 86 tid 100089 td 0xc54a1e10
> propagate_priority(c54a1e10,c08f3750,c54c6960,c0901ae0,c54a1e10) at =20
> propagate_priority+0x7f
> turnstile_wait(c56f6a80,c0901ae0,c54c6960) at turnstile_wait+0x2e1
> _mtx_lock_sleep(c0901ae0,c54a1e10,0,0,0) at _mtx_lock_sleep+0xf9
> nfsrv_rcv(c5b32b64,c5b5b580,1) at nfsrv_rcv+0x4e
> sowakeup(c5b32b64,c5b32bb4) at sowakeup+0xad
> udp_append(c5a8c870,c5c96810,c5a99200,1c,ee83dc60) at udp_append+0x158
> udp_input(c5a99200,14,8e009fc3,0,0) at udp_input+0x5fb
> ip_input(c5a99200) at ip_input+0x4f1
> netisr_processqueue(c08f5718) at netisr_processqueue+0xa3
> swi_net(0) at swi_net+0xf2
> ithread_loop(c5455e00,ee83dd48) at ithread_loop+0x159
> fork_exit(c0605048,c5455e00,ee83dd48) at fork_exit+0x75
> fork_trampoline() at fork_trampoline+0x8
> --- trap 0x1, eip =3D 0, esp =3D 0xee83dd7c, ebp =3D 0 ---

This looks like what I have been observed within a recent -CURRENT
kernel, which indicates a bug that was fixed recently.

Would you please try the patch here:
http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/kern/kern_switch.c.diff?r1=3D=
1.111&r2=3D1.112

You can safely ignore failed patch of Hunk #1, but if Hunk #2 and/or #3
has been failed, please let us know your ident /sys/kern/kern_switch.c
output.

Cheers,
--=20
Xin LI <delphij delphij net>  http://www.delphij.net/

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