Other Constant "iSCSI Session is restarted" using isboot-kmod

Brian Kidney

New Member


Messages: 1

I have been able to successfully boot FreeBSD 10.4 over iSCSi using net/isboot-kmod. However, once booted I continuously get the following message.

Code:
iSCSI session is restarted
This leaves me with an unstable system as random filesystem accesses will hang on zio->io_cv. Once this happens, the system will hang until the kernel panics with the message below.

Code:
panic: I/O to pool 'zroot' appears to be hung on vdev guid...
I have tried recompiling the kernel module with trace information on, but I cannot find any obvious errors. I have include sample output below from around the time of a restart message for completeness.

Has anyone seen this behaviour before?

Code:
...
Jan  8 11:53:47 en1038bpc07 kernel: login end
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 901
Jan  8 11:53:47 en1038bpc07 kernel: isboot scsi io
Jan  8 11:53:47 en1038bpc07 kernel: add ccb
Jan  8 11:53:47 en1038bpc07 kernel: cam rescan
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 4
Jan  8 11:53:47 en1038bpc07 kernel: isboot_free_mbufext
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 4 done
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 4
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 4 done
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 4
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 4 done
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 4
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 4 done
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 15
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 15 done
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 16
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 16 done
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 4
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 4 done
Jan  8 11:53:47 en1038bpc07 kernel: isboot action 901
Jan  8 11:53:47 en1038bpc07 kernel: isboot scsi io
Jan  8 11:53:47 en1038bpc07 kernel: add ccb
Jan  8 11:53:47 en1038bpc07 kernel: cam rescan end
Jan  8 11:53:47 en1038bpc07 kernel: iSCSI session is restarted
Jan  8 11:53:47 en1038bpc07 kernel: peek BHS
Jan  8 11:53:47 en1038bpc07 kernel: recv PDU
Jan  8 11:53:47 en1038bpc07 kernel: isboot_execute opcode=0x21
Jan  8 11:53:47 en1038bpc07 kernel: SCSI RSP
Jan  8 11:53:47 en1038bpc07 kernel: CmdSN=5810, ExpStatSN=5816, StatSN=1322293, ExpCmdSN=5809, MaxCmdSN=5872
Jan  8 11:53:47 en1038bpc07 kernel: ExpDataSN=0
Jan  8 11:53:47 en1038bpc07 kernel: o=0, u=0, O=0, U=0
Jan  8 11:53:47 en1038bpc07 kernel: xpt_done 1
Jan  8 11:53:47 en1038bpc07 kernel: remove ccb ITT=16b1
Jan  8 11:53:47 en1038bpc07 kernel: peek BHS
Jan  8 11:53:47 en1038bpc07 kernel: recv PDU
...
 
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