[Bug 237937] Removing path with mpr and geom_multipath causes kernel panic

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237937

harrison at glsan.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |harrison at glsan.com

--- Comment #5 from harrison at glsan.com ---
This bug is also found if bad devices are on the bus.   Here is message output
when then bug is hit.
Jun 12 03:33:59 pavo kernel: (da106:mps1:0:120:0): Retrying command, 14 more
tries remain
Jun 12 03:33:59 pavo kernel: (da106:mps1:0:120:0): WRITE(16). CDB: 8a 00 00 00
00 03 a8 54 56 58 00 00 00 20 00 00 
Jun 12 03:33:59 pavo kernel: (da106:mps1:0:120:0): CAM status: CCB request
completed with an error
Jun 12 03:33:59 pavo kernel: (da106:mps1:0:120:0): Retrying command, 14 more
tries remain
Jun 12 03:33:59 pavo kernel: (da106:mps1:0:120:0): WRITE(16). CDB: 8a 00 00 00
00 03 a8 54 55 68 00 00 00 18 00 00 
Jun 12 03:33:59 pavo kernel: Finished recovery after LUN reset for target 120
Jun 12 03:33:59 pavo kernel: mps1: More commands to abort for target 120
Jun 12 03:33:59 pavo kernel: 
Jun 12 03:33:59 pavo syslogd: last message repeated 1 times
Jun 12 03:33:59 pavo kernel: Fatal trap 12: page fault while in kernel mode
Jun 12 03:33:59 pavo kernel: cpuid = 10; apic id = 0a
Jun 12 03:33:59 pavo kernel: fault virtual address      = 0x0
Jun 12 03:33:59 pavo kernel: fault code         = supervisor read data, page
not present
Jun 12 03:33:59 pavo kernel: instruction pointer        =
0x20:0xffffffff806f8421
Jun 12 03:33:59 pavo kernel: stack pointer              =
0x28:0xfffffe00bab8f900
Jun 12 03:33:59 pavo kernel: frame pointer              =
0x28:0xfffffe00bab8f940
Jun 12 03:33:59 pavo kernel: code segment               = base 0x0, limit
0xfffff, type 0x1b
Jun 12 03:33:59 pavo kernel:                    = DPL 0, pres 1, long 1, def32
0, gran 1
Jun 12 03:33:59 pavo kernel: (da106:mps1:0:120:0): CAM status: CCB request
completed with an error
Jun 12 03:33:59 pavo kernel: (da106:mps1:0:120:0): Retrying command, 14 more
tries remain
Jun 12 03:33:59 pavo kernel: (da106:mps1:0:120:0): WRITE(16). CDB: 8a 00 00 00
00 03 a8 54 56 08 00 00 00 20 00 00 
Jun 12 03:33:59 pavo kernel: (da106:mps1:0:120:0): CAM status: CCB request
completed with an error
Jun 12 03:33:59 pavo kernel: (da106:mps1:0:120:0): Retrying command, 14 more
tries remain
Jun 12 03:33:59 pavo kernel: (da106:mps1:0:120:0): WRITE(16). CDB: 8a 00 00 00
00 03 a8 54 55 d8 00 00 00 18 00 00 
Jun 12 04:09:48 pavo syslogd: kernel boot file is /boot/kernel/kernel

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