On Tuesday, July 11, 2017 11:55:47 PM Peter Wemm wrote: > On Tuesday, July 11, 2017 11:08:15 PM Peter Wemm wrote: > > On Wednesday, June 28, 2017 01:59:20 PM Andriy Gapon wrote: > > > A side bonus of this change is that now a vdev zio has a pointer > > > to its corresponding bio while the zio is active. > > > > fault virtual address = 0x28 > > > > > > db> where > > Tracing pid 0 tid 100471 td 0xfffff80005452000 > > vdev_geom_io_done() at vdev_geom_io_done+0x36/frame 0xfffffe0239f9eaa0 > > zio_vdev_io_done() at zio_vdev_io_done+0x176/frame 0xfffffe0239f9ead0 > > zio_execute() at zio_execute+0xac/frame 0xfffffe0239f9eb20 > > Oops, truncated. > > > taskqueue_run_locked() at taskqueue_run_locked+0x127/frame > 0xfffffe0239f9eb80 taskqueue_thread_loop() at > taskqueue_thread_loop+0xc8/frame 0xfffffe0239f9ebb0 fork_exit() at > fork_exit+0x85/frame 0xfffffe0239f9ebf0 > fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0239f9ebf0 > --- trap 0, rip = 0, rsp = 0, rbp = 0 ---
Likewise with a disk failing or being put offline. eg: the explicit offlining
case, making a vdev degrade:
r...@nope.ysv:/home/peter # zpool offline zroot mfid5p3
atal trap 12: page fault while in kernel mode
cpuid = 4; apic id = 04
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x28
Fatal trap 12: page fault while in kernel mode
Fatal trap 12: page fault while in kernel mode
Fatal trap 12: page fault while in kernel mode
cpuid = 7; apic id = 07
cpuid = 1; apic id = 01
fault virtual address = 0x28
fault code = supervisor read data, page not present
cpuid = 3; cpuid = 5; apic id = 03
Fatal trap 12: page fault while in kernel mode
apic id = 05
fault virtual address = 0x28
fault virtual address = 0x28
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff803aab56
stack pointer = 0x28:0xfffffe085fb3aa90
instruction pointer = 0x20:0xffffffff803aab56
fault code = supervisor read data, page not present
cpuid = 6; fault virtual address = 0x28
Fatal trap 12: page fault while in kernel mode
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff803aab56
stack pointer = 0x28:0xfffffe085fb3fa90
frame pointer = 0x28:0xfffffe085fb3aaa0
fault code = supervisor read data, page not present
cpuid = 2; apic id = 02
apic id = 06
instruction pointer = 0x20:0xffffffff803aab56
fault virtual address = 0x28
fault code = supervisor read data, page not present
stack pointer = 0x28:0xfffffe085fb30a90
instruction pointer = 0x20:0xffffffff803aab56
stack pointer = 0x28:0xfffffe085fb35a90
frame pointer = 0x28:0xfffffe085fb3faa0
code segment = base 0x0, limit 0xfffff, type 0x1b
stack pointer = 0x28:0xfffffe085fb44a90
frame pointer = 0x28:0xfffffe085fb44aa0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
fault virtual address = 0x28
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, instruction pointer = 0x20:6
frame pointer = 0x28:0xfffffe085fb30aa0
code segment = base 0x0, limit 0xfffff, type 0x1b
code segment = base 0x0, limit 0xfffff, type 0x1b
frame pointer = 0x28:0xfffffe085fb35aa0
code segment = base 0x0, limit 0xfffff, type 0x1b
resume, IOPL = 0
stack pointer = 0x28:0xfffffe085fb26a90
= DPL 0, pres 1, long 1, def32 0, gran 1
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = fault code = supervisor read data, page not
frame pointer = 0x28:0xfffffe085fb26aa0
instruction pointer = 0x20:0xffffffff803aab56
processor eflags = interrupt enabled, code segment = base b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 0 (zio_write_intr_2)
[ thread pid 0 tid 100500 ]
Stopped at vdev_geom_io_done+0x36: movq 0x28(%rbx),%rsi
db> where
Tracing pid 0 tid 100500 td 0xfffff8000aae6000
vdev_geom_io_done() at vdev_geom_io_done+0x36/frame 0xfffffe085fb30aa0
zio_vdev_io_done() at zio_vdev_io_done+0x176/frame 0xfffffe085fb30ad0
zio_execute() at zio_execute+0xac/frame 0xfffffe085fb30b20
taskqueue_run_locked() at taskqueue_run_locked+0x127/frame 0xfffffe085fb30b80
taskqueue_thread_loop() at taskqueue_thread_loop+0xc8/frame 0xfffffe085fb30bb0
fork_exit() at fork_exit+0x85/frame 0xfffffe085fb30bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe085fb30bf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
db>
--
Peter Wemm - pe...@wemm.org; pe...@freebsd.org; pe...@yahoo-inc.com; KI6FJV
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