Date: Sun, 11 Oct 2015 05:21:57 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 203691] [panic] Fatal trap 12: page fault while in kernel mode (in function vfs_cache_lookup) Message-ID: <bug-203691-8@https.bugs.freebsd.org/bugzilla/>
next in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203691 Bug ID: 203691 Summary: [panic] Fatal trap 12: page fault while in kernel mode (in function vfs_cache_lookup) Product: Base System Version: 10.2-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: neovortex@gmail.com A system that runs ZFS, a number of jails (some of which use nullfs across ZFS filesystems) and one bhyve VM is crashing every so often (crashes are usually occur with between a week and a couple of months). Running 10.2-RELEASE-p4 on amd64 with a GENERIC kernel installed from freebsd-update, although crashes have occurred on earlier 10.x versions as well although I can't recall exact version. Hardware has been tested (memtest and cpu stress tests) without issues. Disks are attached using a mix of AHCI and a LSI Logic SAS2008 card (mps driver). Fatal trap 12: page fault while in kernel mode cpuid = 3; apic id = 06 fault virtual address = 0x10000002f fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff809d6e14 stack pointer = 0x28:0xfffffe0654b534e0 frame pointer = 0x28:0xfffffe0654b53560 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 = 8041 (find) trap number = 12 panic: page fault cpuid = 3 KDB: stack backtrace: #0 0xffffffff80984e30 at kdb_backtrace+0x60 #1 0xffffffff809489e6 at vpanic+0x126 #2 0xffffffff809488b3 at panic+0x43 #3 0xffffffff80d4aadb at trap_fatal+0x36b #4 0xffffffff80d4addd at trap_pfault+0x2ed #5 0xffffffff80d4a47a at trap+0x47a #6 0xffffffff80d307f2 at calltrap+0x8 #7 0xffffffff809d83dc at vfs_cache_lookup+0xac #8 0xffffffff80e71621 at VOP_LOOKUP_APV+0xa1 #9 0xffffffff809e0951 at lookup+0x5a1 #10 0xffffffff809e00b4 at namei+0x4d4 #11 0xffffffff809f471e at kern_statat_vnhook+0xae #12 0xffffffff809f462c at sys_fstatat+0x2c #13 0xffffffff80d4b3f7 at amd64_syscall+0x357 #14 0xffffffff80d30adb at Xfast_syscall+0xfb (kgdb) #0 doadump (textdump=<value optimized out>) at pcpu.h:219 #1 0xffffffff80948642 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:451 #2 0xffffffff80948a25 in vpanic (fmt=<value optimized out>, ap=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:758 #3 0xffffffff809488b3 in panic (fmt=0x0) at /usr/src/sys/kern/kern_shutdown.c:687 #4 0xffffffff80d4aadb in trap_fatal (frame=<value optimized out>, eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:851 #5 0xffffffff80d4addd in trap_pfault (frame=0xfffffe0654b53430, usermode=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:674 #6 0xffffffff80d4a47a in trap (frame=0xfffffe0654b53430) at /usr/src/sys/amd64/amd64/trap.c:440 #7 0xffffffff80d307f2 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:236 #8 0xffffffff809d6e14 in cache_lookup (dvp=0xfffff8059a1fbce8, vpp=0xfffffe0654b53858, cnp=0xfffffe0654b53880, tsp=0x0, ticksp=0x0) at /usr/src/sys/kern/vfs_cache.c:548 #9 0xffffffff809d83dc in vfs_cache_lookup (ap=<value optimized out>) at /usr/src/sys/kern/vfs_cache.c:1039 #10 0xffffffff80e71621 in VOP_LOOKUP_APV (vop=<value optimized out>, a=<value optimized out>) at vnode_if.c:129 #11 0xffffffff809e0951 in lookup (ndp=0xfffffe0654b537f8) at vnode_if.h:54 #12 0xffffffff809e00b4 in namei (ndp=0xfffffe0654b537f8) at /usr/src/sys/kern/vfs_lookup.c:302 #13 0xffffffff809f471e in kern_statat_vnhook (td=0xfffff805d4e01000, flag=<value optimized out>, fd=-100, path=0x801169a88 <Address 0x801169a88 out of bounds>, pathseg=UIO_USERSPACE, sbp=0xfffffe0654b53910, hook=0xfffffe0000dcb000) at /usr/src/sys/kern/vfs_syscalls.c:2298 #14 0xffffffff809f462c in sys_fstatat (td=0x7e891088, uap=0xfffffe0654b53a40) at /usr/src/sys/kern/vfs_syscalls.c:2278 #15 0xffffffff80d4b3f7 in amd64_syscall (td=0xfffff805d4e01000, traced=0) at subr_syscall.c:134 #16 0xffffffff80d30adb in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:396 #17 0x00000008008b5f0a in ?? () Previous frame inner to this frame (corrupt stack?) Current language: auto; currently minimal (kgdb) I have crash dumps enabled now, although only I only have the core from the most recent crash as mentioned above. Previous crashes have had the same backtrace. -- You are receiving this mail because: You are the assignee for the bug.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-203691-8>