I've been getting this quite frequently on head recently. I have dumps
if anyone is interested in more information.
Fatal trap 9: general protection fault while in kernel mode
cpuid = 10; Memory modified after free 0xfffff8003e0b0800(2040) val=ffffffff @
0xfffff8003e0b0808
apanic: Most recently used by CAM CCB
cpuid = 6
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe124735b4c0
kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe124735b570
vpanic() at vpanic+0x189/frame 0xfffffe124735b5f0
panic() at panic+0x43/frame 0xfffffe124735b650
mtrash_ctor() at mtrash_ctor+0x8a/frame 0xfffffe124735b680
uma_zalloc_arg() at uma_zalloc_arg+0x4f1/frame 0xfffffe124735b6f0
malloc() at malloc+0x192/frame 0xfffffe124735b740
xpt_run_allocq() at xpt_run_allocq+0xb5/frame 0xfffffe124735b780
adastrategy() at adastrategy+0x117/frame 0xfffffe124735b7b0
g_io_request() at g_io_request+0x3b7/frame 0xfffffe124735b810
g_part_start() at g_part_start+0x2b7/frame 0xfffffe124735b890
g_io_request() at g_io_request+0x3b7/frame 0xfffffe124735b8f0
g_io_request() at g_io_request+0x3b7/frame 0xfffffe124735b950
vdev_geom_io_start() at vdev_geom_io_start+0x137/frame 0xfffffe124735b970
zio_vdev_io_start() at zio_vdev_io_start+0x49f/frame 0xfffffe124735b9d0
zio_execute() at zio_execute+0x204/frame 0xfffffe124735ba30
vdev_queue_io_done() at vdev_queue_io_done+0x180/frame 0xfffffe124735ba80
zio_vdev_io_done() at zio_vdev_io_done+0x11d/frame 0xfffffe124735bac0
zio_execute() at zio_execute+0x204/frame 0xfffffe124735bb20
taskqueue_run_locked() at taskqueue_run_locked+0xf0/frame 0xfffffe124735bb80
taskqueue_thread_loop() at taskqueue_thread_loop+0x9b/frame 0xfffffe124735bbb0
fork_exit() at fork_exit+0x84/frame 0xfffffe124735bbf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe124735bbf0
--- trap 0, rip = 0, rsp = 0xfffffe124735bcb0, rbp = 0 ---
KDB: enter: panic
[ thread pid 0 tid 100571 ]
Stopped at kdb_enter+0x3e: movq $0,kdb_why
--
Regards,
Bryan Drewery
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