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Date:      Fri, 24 Mar 2017 10:55:43 -0700 (PDT)
From:      "Jeffrey Bouquet" <jbtakk@iherebuywisely.com>
To:        "Darren" <darren780@yahoo.com>
Cc:        "freebsd-current@freebsd.org" <freebsd-current@freebsd.org>
Subject:   Re: r315684 panic: sleepq_add: td 0xfffff80003c01a40 to sleep on wchan 0xfffff80006f0873c with sleeping prohibited
Message-ID:  <E1crTR9-0005vU-QS@rmmprod05.runbox>
In-Reply-To: <1824572972.3096988.1490377215756@mail.yahoo.com>

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On Fri, 24 Mar 2017 17:40:15 +0000 (UTC), Darren <darren780@yahoo.com> wrot=
e:

> I am getting this panic every hour to every couple of hours.
>=20
> FreeBSD asrock 12.0-CURRENT FreeBSD 12.0-CURRENT #0 r315684: Thu Mar 23 1=
4:56:45 EDT 2017=C2=A0=C2=A0=C2=A0=C2=A0 darren@asrock:/usr/obj/usr/src/sys=
/GENERIC=C2=A0 amd64
> I manually typed out the following, apologize for any typos.=20
>=20
>=20
> panic: sleepq_add: td 0xfffff80003c01a40 to sleep on wchan 0xfffff80006f0=
873c with sleeping prohibited
> cpuid =3D 0
> time =3D 1490372797
> KDB: stack backtrace:
> db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0072e=
33690
> vpanic() at vpanic+0x19c/frame 0xfffffe0072e33710
> kassert_panic() at kassert_panic+0x126/frame 0xfffffe0072e33780
> sleepq_add() at sleepq_add+0x34f/frame 0xfffffe0072337d0
> _sleep() at _sleep+0x28d/frame 0xfffffe0072e33870
> soclose() at soclose+0xda/frame 0xfffffe0072e338b0
> _fdrop() at _fdrop+0x1a/frame 0xfffffe0072e338d0
> sendfile_iodone() at sendfile_iodone+0x19d/frame 0xfffffe0072e33910
> vnode_pager_generic_getpages_done_async() at vnode_pager_generic_getpages=
_done_async+037/frame 0xfffffe0072e33930
> bufdone() at bufdone+0x64/frame 0xfffffe0072e33960
> g_io_deliver() at g_io_deliver+0x276/frame 0xfffffe0072e339b0
> g_io_deliver() at g_io_deliver+0x276/frame 0xfffffe0072e33a00
> g_disk_done() at g_disk_done+0x104/frame 0xfffffe0072e33a40
> xpt_done_process() at xpt_done_process+0x35f/frame 0xfffffe0072e33a80
> xpt_done_direct() at ahci_ch_intr_direct+0xd5/frame 0xfffffe0072e33af0
> ahci_itr() at ahci_intr+0x102/frame 0xfffffe0072e33b20
> intr_event_execute_handlers() at intr_event_execute_handlers+0x99/frame 0=
xfffffe0072e33b60
> ithread_loop() at ithread_loop+0xb6/frame 0xfffffe0072e33bb0
> fork_exit() at fork_exit+0x84/frame 0xfffffe0072e33bf0
> fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0072e33bf0
> --- trap 0, rip =3D 0, rsp =3D 0, rbp =3D 0 ---
> KDB: enter: panic
> [ thread pid 12 tid 100038 ]
> Stopped at=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 kdb_enter+0x3b: movq=C2=A0=C2=A0=
=C2=A0 $0,kdb_why
> db>
>=20
>=20
>=20
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Will there ever be an auto-save to .txt upon break to debugger or lock
reversal or similar in code? or is beyond the capability of the OS once the
occurance has taken place, I wonder.=20=



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