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.
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.
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:
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
...