Date: Mon, 11 Jan 2021 17:07:57 +0000 From: Matthias Apitz <guru@unixarea.de> To: freebsd-current@freebsd.org Subject: Re: Panic after updating Message-ID: <n05y8t.qms4xb.1hgf02e-qmf@ms-10.1blu.de> In-Reply-To: <34a9dafd-9690-1b33-abf8-017ad31cf2ab@alvermark.net> References: <87512669-f0b9-eb2f-1103-170a29384ea8@alvermark.net> <ad969a6e-4029-b85c-f304-1198b05ad725@selasky.org> <34a9dafd-9690-1b33-abf8-017ad31cf2ab@alvermark.net>
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On Mon, 11 Jan 2021 17:24:39 +0100, Jakob Alvermark wrote: > > On 1/11/21 1:14 PM, Hans Petter Selasky wrote: >> On 1/11/21 11:12 AM, Jakob Alvermark wrote: >>> >>> Updated my Acer laptop from r367734 to main-c255666-g1790f5e654f >>> >>> >>> Rebooting with the newly build kernel i get this panic. >>> >>> >>> Fatal trap 12: page fault while in kernel mode >>> >>> cpuid = 1; apic id = 02 >>> fault virtual address = 0x1030000 >>> fault code = supervisor read data, >>> >>> instruction pointer = 0x20:0xffffffff809e5265 >>> stack pointer = 0x28:0xffffffff8281db70 >>> frame pointer = 0x28:0xffffffff8281db70 >>> code segment = base 0x0, limit 0xfffff, type 0x1b >>> = DPL 0, pres 1, long 1, def32 0, gran 1 >>> processor eflags = interrupt enabled, resume, IOPL = 0 >>> current process = 12 (irq88: xhci0) >>> trap number = 12 >>> panic: page fault >>> cpuid = 1 >>> time = 2 >>> KDB: stack backtrace: >>> db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame >>> 0xffffffff8281d820 >>> vpanic() at vpanic+0x181/frame 0xffffffff8281d870 >>> panic() at panic+0x43/frame 0xffffffff8281d8d0 >>> trap_fatal() at trap_fatal+0x387/frame 0xffffffff8281d930 >>> trap_pfault() at trap_pfault+0x4f/frame 0xffffffff8281d990 >>> trap() at trap+0x280/frame 0xffffffff8281daa0 >>> calltrap() at calltrap+0x8/frame 0xffffffff8281daa0 >>> --- trap 0xc, rip = 0xffffffff809e5265, rsp = 0xffffffff8281db70, >>> rbp = 0xffffffff8281db70 --- >>> usbd_get_page() at usbd_get_page+0x65/frame 0xffffffff8281db70 >>> xhci_interrupt_poll() at xhci_interrupt_poll+0x29/frame >>> 0xffffffff8281dc20 >>> xhci_interrupt() at xhci_interrupt+0x11a/frame 0xffffffff8281dc60 >>> ithread_loop() at ithread_loop+0x24f/frame 0xffffffff8281dcf0 >>> fork_exit() at fork_exit+0x7e/frame 0xffffffff8281dd30 >>> fork_trampoline() at fork_trampoline+0xe/frame 0xffffffff8281dd30 >>> --- trap 0, rip = 0, rsp = 0, rbp = 0 --- >>> KDB: enter: panic >>> >>> >>> Any help appreciated. >> >> Hi, >> >> If you could bi-sect that panic, would be great. >> >> Else install gdb from ports and run: >> >> kgdb101 >> >> info line *(usbd_get_page+0x65) >> >> > > Having just learned how to bisect (thanks Warner for the mini primer) > this is the result: > > de0b2d4f47bad36025dcf52755ce76cca6e715d9 is the first bad commit > > Jakob > Can you please share this mini primer or a link to it. TIA Matthias -- Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045 Public GnuPG key: http://www.unixarea.de/key.pub Без книги нет знания, без знания нет коммунизма (Влaдимир Ильич Ленин) Without books no knowledge - without knowledge no communism (Vladimir Ilyich Lenin) Sin libros no hay saber - sin saber no hay comunismo. (Vladimir Ilich Lenin) -- Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045 Public GnuPG key: http://www.unixarea.de/key.pub Без книги нет знания, без знания нет коммунизма (Влaдимир Ильич Ленин) Without books no knowledge - without knowledge no communism (Vladimir Ilyich Lenin) Sin libros no hay saber - sin saber no hay comunismo. (Vladimir Ilich Lenin)help
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