Date: Tue, 28 Jul 2015 17:48:03 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 201947] Panics in if_bfe under certain loads types (reproducible with rtorrent) Message-ID: <bug-201947-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=201947 Bug ID: 201947 Summary: Panics in if_bfe under certain loads types (reproducible with rtorrent) Product: Base System Version: 10.1-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: obrien.hugh+bacon@gmail.com Created attachment 159341 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=159341&action=edit kgdb printout rtorrent usage will often cause a panic. Sustained traffic with scp, etc. does not exhibit this. I've caught one in action: Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x30 fault code = supervisor write data, page not present instruction pointer = 0x20:0xffffffff8048c5ad stack pointer = 0x28:0xfffffe0018667a50 frame pointer = 0x28:0xfffffe0018667ab0 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 (irq21: bfe0) trap number = 12 panic: page fault cpuid = 0 KDB: stack backtrace: #0 0xffffffff80963000 at kdb_backtrace+0x60 #1 0xffffffff80928125 at panic+0x155 #2 0xffffffff80d258df at trap_fatal+0x38f #3 0xffffffff80d25bf8 at trap_pfault+0x308 #4 0xffffffff80d2525a at trap+0x47a #5 0xffffffff80d0b142 at calltrap+0x8 #6 0xffffffff8048d0bd at bfe_intr+0x17d #7 0xffffffff808faf4b at intr_event_execute_handlers+0xab #8 0xffffffff808fb396 at ithread_loop+0x96 #9 0xffffffff808f8b6a at fork_exit+0x9a #10 0xffffffff80d0b67e at fork_trampoline+0xe Uptime: 4d17h28m15s <snip> Full output in attachment. Info file: Dump header from device /dev/ada0p2 Architecture: amd64 Architecture Version: 2 Dump Length: 174780416B (166 MB) Blocksize: 512 Dumptime: Mon Jul 27 14:01:00 2015 Hostname: majortom Magic: FreeBSD Kernel Dump Version String: FreeBSD 10.1-RELEASE-p10 #0: Wed May 13 06:54:13 UTC 2015 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC Panic String: page fault Dump Parity: 2579429912 Bounds: 1 Dump Status: good I've uploaded the vmcore file here if it's helpful: https://skynet.ie/~teslacut/vmcore.0.xz -- You are receiving this mail because: You are the assignee for the bug.
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