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Mon, 11 Jan 2021 17:24:40 +0100 Subject: Re: Panic after updating To: Hans Petter Selasky , FreeBSD Current References: <87512669-f0b9-eb2f-1103-170a29384ea8@alvermark.net> From: Jakob Alvermark Message-ID: <34a9dafd-9690-1b33-abf8-017ad31cf2ab@alvermark.net> Date: Mon, 11 Jan 2021 17:24:39 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:78.0) Gecko/20100101 Thunderbird/78.4.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-Rspamd-Queue-Id: 4DDzZ32yflz4SPw X-Spamd-Bar: - X-Spamd-Result: default: False [-1.52 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[alvermark.net:s=x]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:185.34.136.138]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[alvermark.net: no valid DMARC record]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_SPAM_SHORT(0.98)[0.977]; SPAMHAUS_ZRD(0.00)[185.34.136.138:from:127.0.2.255]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[alvermark.net:+]; RCPT_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RBL_DBL_DONT_QUERY_IPS(0.00)[185.34.136.138:from]; ASN(0.00)[asn:34971, ipnet:185.34.136.0/24, country:IT]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-current] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Jan 2021 16:24:44 -0000 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