Date: Mon, 11 Jan 2021 13:14:41 +0100 From: Hans Petter Selasky <hps@selasky.org> To: Jakob Alvermark <jakob@alvermark.net>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: Panic after updating Message-ID: <ad969a6e-4029-b85c-f304-1198b05ad725@selasky.org> In-Reply-To: <87512669-f0b9-eb2f-1103-170a29384ea8@alvermark.net> References: <87512669-f0b9-eb2f-1103-170a29384ea8@alvermark.net>
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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) It looks like a recursive panic, so the backtrace you see there is just for polling the keyboard, which apparently fails. --HPS
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