On 5/7/2015 10:06 AM, Bryan Drewery wrote: > On 5/7/2015 7:08 AM, Johan Schuijt-Li wrote: >> Hi, >> >> We’ve been seeing (seemingly) random reboots on 10.1-RELEASE virtual >> machines (KVM virtualisation) on our production servers. In an attempt to >> determine what was causing this we’ve switched to running a kernel with >> INVARIANTS enabled. This resulted for us in the following panic: >> >> Unread portion of the kernel message buffer: >> panic: pmap active 0xfffff8001b7154b8 >> cpuid = 3 >> KDB: stack backtrace: >> db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame >> 0xfffffe03dd1493a0 >> kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe03dd149450 >> vpanic() at vpanic+0x126/frame 0xfffffe03dd149490 >> kassert_panic() at kassert_panic+0x139/frame 0xfffffe03dd149500 >> pmap_remove_pages() at pmap_remove_pages+0x8c/frame 0xfffffe03dd1495f0 >> exec_new_vmspace() at exec_new_vmspace+0x16a/frame 0xfffffe03dd149650 >> exec_elf64_imgact() at exec_elf64_imgact+0x658/frame 0xfffffe03dd149720 >> kern_execve() at kern_execve+0x5e4/frame 0xfffffe03dd149a80 >> sys_execve() at sys_execve+0x37/frame 0xfffffe03dd149ae0 >> amd64_syscall() at amd64_syscall+0x25a/frame 0xfffffe03dd149bf0 >> Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe03dd149bf0 >> --- syscall (59, FreeBSD ELF64, sys_execve), rip = 0x80158af1a, rsp = >> 0x7fffffffac38, rbp = 0x7fffffffad40 --- >> >> >> I’ve only come across one other report here (without result unfortunate): >> https://lists.freebsd.org/pipermail/freebsd-current/2014-June/050827.html >> <https://lists.freebsd.org/pipermail/freebsd-current/2014-June/050827.html> >> > > I looked around for the conclusion of that thread but could not find it.
Found it. https://svnweb.freebsd.org/base?view=revision&revision=271000 This fix is in 10.1-RELEASE, so yours must be a little different. -- Regards, Bryan Drewery
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