[Bug 210466] [panic] Fatal trap 12: page fault while in kernel mode

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=210466

            Bug ID: 210466
           Summary: [panic] Fatal trap 12: page fault while in kernel mode
           Product: Base System
           Version: 10.2-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: cornelis.deman at deltares.nl
                CC: freebsd-amd64 at FreeBSD.org
                CC: freebsd-amd64 at FreeBSD.org

Created attachment 171680
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=171680&action=edit
Verbose output of the pciconf command

Jun 22 16:12:52 storage009 kernel: Fatal trap 12: page fault while in kernel
mode
Jun 22 16:12:52 storage009 kernel: cpuid = 19; apic id = 13
Jun 22 16:12:52 storage009 kernel: fault virtual address        =
0xffffffffffffffff
Jun 22 16:12:52 storage009 kernel: fault code           = supervisor read data,
page not present
Jun 22 16:12:52 storage009 kernel: instruction pointer  =
0x20:0xffffffff80d4875a
Jun 22 16:12:52 storage009 kernel: stack pointer                =
0x28:0xfffffe085f589d50
Jun 22 16:12:52 storage009 kernel: frame pointer                =
0x28:0xfffffe085f589d60
Jun 22 16:12:52 storage009 kernel: code segment         = base 0x0, limit
0xfffff, type 0x1b
Jun 22 16:12:52 storage009 kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Jun 22 16:12:52 storage009 kernel: processor eflags     = interrupt enabled,
resume, IOPL = 0
Jun 22 16:12:52 storage009 kernel: current process              = 598 (nfsd:
service)
Jun 22 16:12:52 storage009 kernel: trap number          = 12
Jun 22 16:12:52 storage009 kernel: panic: page fault
Jun 22 16:12:52 storage009 kernel: cpuid = 19
Jun 22 16:12:52 storage009 kernel: KDB: stack backtrace:
Jun 22 16:12:52 storage009 kernel: #0 0xffffffff80984ef0 at kdb_backtrace+0x60
Jun 22 16:12:52 storage009 kernel: #1 0xffffffff80948aa6 at vpanic+0x126
Jun 22 16:12:52 storage009 kernel: #2 0xffffffff80948973 at panic+0x43
Jun 22 16:12:52 storage009 kernel: #3 0xffffffff80d4aacb at trap_fatal+0x36b
Jun 22 16:12:52 storage009 kernel: #4 0xffffffff80d4adcd at trap_pfault+0x2ed
Jun 22 16:12:52 storage009 kernel: #5 0xffffffff80d4a46a at trap+0x47a
Jun 22 16:12:52 storage009 kernel: #6 0xffffffff80d307e2 at calltrap+0x8
Jun 22 16:12:52 storage009 kernel: #7 0xffffffff809b9782 at m_defrag+0x222
Jun 22 16:12:52 storage009 kernel: #8 0xffffffff80df9606 at
vmxnet3_txq_mq_start_locked+0x1d6
Jun 22 16:12:52 storage009 kernel: #9 0xffffffff80dfb117 at
vmxnet3_txq_mq_start+0x67
Jun 22 16:12:52 storage009 kernel: #10 0xffffffff80a0ea9d at ether_output+0x58d
Jun 22 16:12:52 storage009 kernel: #11 0xffffffff80a7c074 at ip_output+0x11c4
Jun 22 16:12:52 storage009 kernel: #12 0xffffffff80aedb92 at tcp_output+0x1832
Jun 22 16:12:52 storage009 kernel: #13 0xffffffff80af9a39 at tcp_usr_send+0x369
Jun 22 16:12:52 storage009 kernel: #14 0xffffffff809c05e6 at
sosend_generic+0x476
Jun 22 16:12:52 storage009 kernel: #15 0xffffffff80b4ecd2 at svc_vc_reply+0x172
Jun 22 16:12:52 storage009 kernel: #16 0xffffffff80b4af68 at
svc_sendreply_common+0x98
Jun 22 16:12:52 storage009 kernel: #17 0xffffffff80b4affa at
svc_sendreply_mbuf+0x5a
Jun 22 16:12:52 storage009 kernel: Uptime: 28d7h1m13s

How to repeat: unknown
Machine type : VMWare virtual machine (ESX 5.5)
Machine role : Production fileserver (ZFS/NFS/SMB)

# kldstat
Id Refs Address            Size     Name
 1   12 0xffffffff80200000 179dea8  kernel
 2    1 0xffffffff8199e000 2f9b18   zfs.ko
 3    2 0xffffffff81c98000 6048     opensolaris.ko
 4    1 0xffffffff81e11000 56aa     fdescfs.ko

# uname -a
FreeBSD localhost 10.2-RELEASE-p18
root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64

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