Date: Fri, 06 Jan 2017 11:26:48 -0800 From: Matthew Macy <mmacy@nextbsd.org> To: "Jonathan Anderson" <jonathan.robert.anderson@gmail.com> Cc: "Pete Wright" <pete@nomadlogic.org>, "" <freebsd-current@freebsd.org> Subject: Re: PQ_LAUNDRY: unexpected behaviour Message-ID: <159753f6ce6.107cab0c974408.7344435149985613837@nextbsd.org> In-Reply-To: <34ADDCA2-853D-4074-8185-B76370A794D2@gmail.com> References: <CAMGEAwBknRjecXFyyFGWFQtstX1OiOUvQoVsb9RXj7rmMQ6dDA@mail.gmail.com> <1596d0f6d6d.1266583c3319360.3590554896761456790@nextbsd.org> <74A6C6D0-90A4-4DB2-8D89-5D2B1E495F88@FreeBSD.org> <15974c6426d.12945df5e62589.5931208946643250381@nextbsd.org> <1779f83b-687d-ac6f-587f-90bdc6d61c20@nomadlogic.org> <4778A6AC-97CF-4AE0-957A-7768964867D9@gmail.com> <a3063792-f155-0fce-4deb-c1625e283a55@nomadlogic.org> <159752cc975.ae39473f72793.2628711433769346229@nextbsd.org> <34ADDCA2-853D-4074-8185-B76370A794D2@gmail.com>
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Thanks. Pete already filed that as part of #108. With luck markj@ will have that fixed this weekend. -M ---- On Fri, 06 Jan 2017 11:24:00 -0800 Jonathan Anderson <jonathan.robert.anderson@gmail.com> wrote ---- > On 6 Jan 2017, at 14:06, Matthew Macy wrote: > > > kernel cores tend to be large (all of wired memory after all) and > > unless I have exactly the same kernel as you with the same sources at > > the same changeset, not useful. A backtrace is a good place to start. > >> kgdb /boot/kernel/kernel /var/crash/vmcore.last > > % bt > > > > -M > > Ok, here we are: > > #0 doadump (textdump=0) at pcpu.h:222 > #1 0xffffffff82a445e7 in vt_kms_postswitch (arg=<value optimized out>) > at > /usr/home/jon/freebsd/graphics/sys/modules/drm/drm/../../../dev/drm/linux_fb.c:82 > #2 0xffffffff808de76b in vt_window_switch (vw=0xffffffff81760ea8) > at /usr/home/jon/freebsd/graphics/sys/dev/vt/vt_core.c:540 > #3 0xffffffff808dc280 in vtterm_cngrab (tm=<value optimized out>) > at /usr/home/jon/freebsd/graphics/sys/dev/vt/vt_core.c:1465 > #4 0xffffffff809f3e02 in cngrab () at > /usr/home/jon/freebsd/graphics/sys/kern/kern_cons.c:368 > #5 0xffffffff80a4d27a in vpanic (fmt=0xffffffff80ff218f "Assertion %s > failed at %s:%d", > ap=0xfffffe0233e6f5f0) at > /usr/home/jon/freebsd/graphics/sys/kern/kern_shutdown.c:765 > #6 0xffffffff80a4d166 in kassert_panic (fmt=<value optimized out>) > at /usr/home/jon/freebsd/graphics/sys/kern/kern_shutdown.c:669 > #7 0xffffffff80d2b93c in vm_fault_hold (map=0xfffff8010c9aa000, > vaddr=34369822720, > fault_type=<value optimized out>, fault_flags=0, m_hold=0x0) > at /usr/home/jon/freebsd/graphics/sys/vm/vm_fault.c:389 > #8 0xffffffff80d2a1b8 in vm_fault (map=0xfffff8010c9aa000, vaddr=<value > optimized out>, > fault_type=2 '\002', fault_flags=<value optimized out>) > at /usr/home/jon/freebsd/graphics/sys/vm/vm_fault.c:474 > #9 0xffffffff80ebb412 in trap_pfault (frame=0xfffffe0233e6f9c0, > usermode=1) > at /usr/home/jon/freebsd/graphics/sys/amd64/amd64/trap.c:708 > #10 0xffffffff80ebaba2 in trap (frame=0xfffffe0233e6f9c0) > at /usr/home/jon/freebsd/graphics/sys/amd64/amd64/trap.c:326 > #11 0xffffffff80e9b181 in calltrap () > at /usr/home/jon/freebsd/graphics/sys/amd64/amd64/exception.S:236 > #12 0x00000008022a3876 in ?? () > > It looks like the other core files have the same backtrace. Please let > me know if any other details would help... > > > Jon > -- > jonathan.anderson@ieee.org >
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