[Bug 225791] ena driver causing kernel panics on AWS EC2

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225791

berend at pobox.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |berend at pobox.com

--- Comment #28 from berend at pobox.com ---
Seeing exactly the same thing on m5.large. 100% repeatable (full zfs send/recv
from another server).

Dec 21 21:07:10 nfs1 kernel: Fatal trap 12: page fault while in kernel mode
Dec 21 21:07:10 nfs1 kernel: cpuid = 0; apic id = 00
Dec 21 21:07:10 nfs1 kernel: fault virtual address      = 0x1c
Dec 21 21:07:10 nfs1 kernel: fault code         = supervisor write data, page
not present
Dec 21 21:07:10 nfs1 kernel: instruction pointer        =
0x20:0xffffffff82269f5c
Dec 21 21:07:10 nfs1 kernel: stack pointer              =
0x0:0xfffffe02259ac180
Dec 21 21:07:10 nfs1 kernel: frame pointer              =
0x0:0xfffffe02259ac260
Dec 21 21:07:10 nfs1 kernel: code segment               = base 0x0, limit
0xfffff, type 0x1b
Dec 21 21:07:10 nfs1 kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Dec 21 21:07:10 nfs1 kernel: processor eflags   = interrupt enabled, resume,
IOPL = 0
Dec 21 21:07:10 nfs1 kernel: current process            = 12 (irq260: ena0)
Dec 21 21:07:10 nfs1 kernel: trap number                = 12
Dec 21 21:07:10 nfs1 kernel: panic: page fault
Dec 21 21:07:10 nfs1 kernel: cpuid = 0
Dec 21 21:07:10 nfs1 kernel: KDB: stack backtrace:
Dec 21 21:07:10 nfs1 kernel: #0 0xffffffff80b3d577 at kdb_backtrace+0x67
Dec 21 21:07:10 nfs1 kernel: #1 0xffffffff80af6b17 at vpanic+0x177
Dec 21 21:07:10 nfs1 kernel: #2 0xffffffff80af6993 at panic+0x43
Dec 21 21:07:10 nfs1 kernel: #3 0xffffffff80f77fdf at trap_fatal+0x35f
Dec 21 21:07:10 nfs1 kernel: #4 0xffffffff80f78039 at trap_pfault+0x49
Dec 21 21:07:10 nfs1 kernel: #5 0xffffffff80f77807 at trap+0x2c7
Dec 21 21:07:10 nfs1 kernel: #6 0xffffffff80f5808c at calltrap+0x8
Dec 21 21:07:10 nfs1 kernel: #7 0xffffffff80abcd69 at
intr_event_execute_handlers+0xe9
Dec 21 21:07:10 nfs1 kernel: #8 0xffffffff80abd047 at ithread_loop+0xe7
Dec 21 21:07:10 nfs1 kernel: #9 0xffffffff80aba093 at fork_exit+0x83
Dec 21 21:07:10 nfs1 kernel: #10 0xffffffff80f58fae at fork_trampoline+0xe
Dec 21 21:07:10 nfs1 kernel: Uptime: 11h49m3s
Dec 21 21:07:10 nfs1 kernel: Rebooting...

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