On Thursday, November 08, 2012 2:32:32 pm Peter Wemm wrote: > On Thu, Nov 8, 2012 at 10:29 AM, John Baldwin <[email protected]> wrote: > > On 10/31/12 8:50 AM, Tommy Sonne Alstrøm wrote: > >> The following reply was made to PR amd64/173235; it has been noted by GNATS. > >> > >> From: =?ISO-8859-1?Q?Tommy_Sonne_Alstr=F8m?= <[email protected]> > >> To: Andriy Gapon <[email protected]> > >> Cc: [email protected] > >> Subject: Re: amd64/173235: Have received two crashes within 1 day after installing > >> new packages: Fatal trap 12: page fault in kernel mode > >> Date: Wed, 31 Oct 2012 13:44:01 +0100 > >> > >> I'm very sorry, I just realized that I copied the 1st readout twice. The > >> 2nd readout was like this > >> > >> Fatal trap 12: page fault while in kernel mode > >> cpuid = 0; apic id = 00 > >> fault virtual address = 0x6 > >> fault code = supervisor read data, page not present > >> instruction pointer = 0x20:0xffffffff809da0cc > >> stack pointer = 0x28:0xffffff8451f549b0 > >> frame pointer = 0x28:0xffffff8451f54a40 > >> 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 = 1068 (named) > >> trap number = 12 > >> panic: page fault > >> cpuid = 0 > >> KDB: stack backtrace: > >> #0 0xffffffff808680fe at kdb_backtrace+0x5e > >> #1 0xffffffff80832cb7 at panic+0x187 > >> #2 0xffffffff80b185a0 at trap_fatal+0x290 > >> #3 0xffffffff80b188e9 at trap_pfault+0x1f9 > >> #4 0xffffffff80b18daf at trap+0x3df > >> #5 0xffffffff80b0324f at calltrap+0x8 > >> #6 0xffffffff809f75a7 at udp6_bind+0xa7 > >> #7 0xffffffff808a152e at kern_bind+0xde > >> #8 0xffffffff808a15a1 at sys_bind+0x41 > >> #9 0xffffffff80b17e90 at amd64_syscall+0x4e0 > >> #10 0xffffffff80b03537 at Xfast_syscall+0xf7 > >> Uptime: 9h41m13s > >> Dumping 3411 out of 16088 > >> MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91% > > > > Both of your panics involve faults where the bad pointer only has a > > single bit set. They are also in very different places. I suspect > > you are having a hardware failure (e.g. single-bit memory errors). > > Which ones are you looking at? A fault va of 0x20 and 0x6 is what I'd > normally suspect of being a null pointer + structure member offset > dereference.
I must have misparsed 0x6 as 0x8. -- John Baldwin _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-amd64 To unsubscribe, send any mail to "[email protected]"
