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Description
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During a dull conference call I unmounted my external usb disk via the desktop and disconected the drive. Moments later my workstation, an Ultra 24, paniced. From the messages in syslog just prior to the panic I assume I prematurely disconected the disk.
> ::status
debugging crash dump vmcore.0 (64-bit) from faramir
operating system: 5.11 snv_100 (i86pc)
panic message:
BAD TRAP: type=e (#pf Page fault) rp=ffffff0010fb3ad0 addr=198 occurred in modul
e "genunix" due to a NULL pointer dereference
dump content: kernel pages only
and from ::msgbuf we see
USB 2.0 device (usb59f,c41) operating at hi speed (USB 2.x) on USB 2.0 root hub:
storage@3, scsa2usb1 at bus address 3
LaCie Hard Drive USB 152D203380B6
scsa2usb1 is /pci@0,0/pci108e,5351@1d,7/storage@3
/pci@0,0/pci108e,5351@1d,7/storage@3 (scsa2usb1) online
sd4 at scsa2usb1: target 0 lun 0
sd4 is /pci@0,0/pci108e,5351@1d,7/storage@3/disk@0,0
/pci@0,0/pci108e,5351@1d,7/storage@3/disk@0,0 (sd4) online
WARNING: /pci@0,0/pci108e,5351@1d,7/storage@3/disk@0,0 (sd4):
Command failed to complete...Device is gone
WARNING: /pci@0,0/pci108e,5351@1d,7/storage@3/disk@0,0 (sd4):
SYNCHRONIZE CACHE command failed (5)
WARNING: /pci@0,0/pci108e,5351@1d,7/storage@3/disk@0,0 (sd4):
Command failed to complete...Device is gone
/pci@0,0/pci108e,5351@1d,7/storage@3/disk@0,0 (sd4) offline
/pci@0,0/pci108e,5351@1d,7/storage@3/disk@0,0 (sd4) offline
/pci@0,0/pci108e,5351@1d,7/storage@3 (scsa2usb1) offline
^Mpanic[cpu3]/thread=ffffff0010fb3c80:
BAD TRAP: type=e (#pf Page fault) rp=ffffff0010fb3ad0 addr=198 occurred in modul
e "genunix" due to a NULL pointer dereference
Looking in /var/adm/messages* there is at least one occurance of these messages that isn't followed by a kernel panic. Between these two events I updated the system from snv_99 to snv_100.
Attached are unix.0, vmcore.0, messages (which includes the panic) and messages.0 and messages.3 that appears to include the same warning messages from the driver but didn't panic.
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