I tried if this error is reproducible: It is. I turned off the swappable drive,
but no kernel message showed up with dmesg.
Only when I tried to access the no longer available drive using "fdisk
/dev/sdb" this shell was frozen for some minutes. A parallel SSH login to this
machine did not succeed since no shell came up after username/password.
Fdisk did not produce any output but just terminated after some minutes. Again
once RAID partition was out of sync and dmesg showed the following log:
[192595.770595] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2
frozen
[192595.770718] ata1.01: cmd 25/00:08:68:59:1c/00:00:1d:00:00/f0 tag 0 dma 4096
in
[192595.770730] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4
(timeout)
[192595.770804] ata1.01: status: { DRDY }
[192595.770923] ata1: soft resetting link
[192600.969062] ata1: port is slow to respond, please be patient (Status 0x80)
[192605.827700] ata1: SRST failed (errno=-16)
[192605.827771] ata1: soft resetting link
[192636.059178] ata1.01: qc timeout (cmd 0xec)
[192636.059210] ata1.01: failed to IDENTIFY (I/O error, err_mask=0x5)
[192636.059231] ata1.01: revalidation failed (errno=-5)
[192636.059296] ata1: failed to recover some devices, retrying in 5 secs
[192641.067816] ata1: soft resetting link
[192646.266236] ata1: port is slow to respond, please be patient (Status 0x80)
[192651.124858] ata1: SRST failed (errno=-16)
[192651.124928] ata1: soft resetting link
[192681.356334] ata1.01: qc timeout (cmd 0xec)
[192681.356366] ata1.01: failed to IDENTIFY (I/O error, err_mask=0x5)
[192681.356387] ata1.01: revalidation failed (errno=-5)
[192681.356452] ata1: failed to recover some devices, retrying in 5 secs
[192686.364935] ata1: soft resetting link
[192691.563403] ata1: port is slow to respond, please be patient (Status 0x80)
[192696.422026] ata1: SRST failed (errno=-16)
[192696.422096] ata1: soft resetting link
[192726.653504] ata1.01: qc timeout (cmd 0xec)
[192726.653537] ata1.01: failed to IDENTIFY (I/O error, err_mask=0x5)
[192726.653558] ata1.01: revalidation failed (errno=-5)
[192726.653622] ata1.01: disabled
[192727.174919] ata1.00: failed to IDENTIFY (I/O error, err_mask=0x40)
[192727.174947] ata1.00: revalidation failed (errno=-5)
[192727.175010] ata1: failed to recover some devices, retrying in 5 secs
[192732.182042] ata1: soft resetting link
[192737.380428] ata1: port is slow to respond, please be patient (Status 0x80)
[192742.239054] ata1: SRST failed (errno=-16)
[192742.239124] ata1: soft resetting link
[192772.470530] ata1.00: qc timeout (cmd 0xec)
[192772.470563] ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[192772.470584] ata1.00: revalidation failed (errno=-5)
[192772.470650] ata1: failed to recover some devices, retrying in 5 secs
[192777.479128] ata1: soft resetting link
[192782.677607] ata1: port is slow to respond, please be patient (Status 0x80)
[192787.536226] ata1: SRST failed (errno=-16)
[192787.536297] ata1: soft resetting link
[192817.767722] ata1.00: qc timeout (cmd 0xec)
[192817.767754] ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[192817.767775] ata1.00: revalidation failed (errno=-5)
[192817.767840] ata1.00: disabled
[192818.697417] ata1: soft resetting link
[192823.895942] ata1: port is slow to respond, please be patient (Status 0x80)
[192828.754549] ata1: SRST failed (errno=-16)
[192828.754618] ata1: soft resetting link
[192828.926156] ata1: EH complete
[192828.926306] sd 1:0:1:0: [sdb] Result: hostbyte=DID_BAD_TARGET
driverbyte=DRIVER_OK,SUGGEST_OK
[192828.926337] end_request: I/O error, dev sdb, sector 488397160
[192828.926361] Buffer I/O error on device sdb, logical block 61049645
[192828.926478] sd 1:0:0:0: [sda] Result: hostbyte=DID_BAD_TARGET
driverbyte=DRIVER_OK,SUGGEST_OK
[192828.926505] end_request: I/O error, dev sda, sector 973040792
[192828.926555] md: super_written gets error=-5, uptodate=0
[192828.926580] raid1: Disk failure on sda2, disabling device.
[192828.926589] Operation continuing on 1 devices
[192828.926982] sd 1:0:1:0: [sdb] Result: hostbyte=DID_BAD_TARGET
driverbyte=DRIVER_OK,SUGGEST_OK
[192828.927041] end_request: I/O error, dev sdb, sector 488397160
[192828.927061] Buffer I/O error on device sdb, logical block 61049645
[192828.938824] RAID1 conf printout:
[192828.938855] --- wd:1 rd:2
[192828.938873] disk 0, wo:1, o:0, dev:sda2
[192828.938889] disk 1, wo:0, o:1, dev:sdc2
[192828.984573] RAID1 conf printout:
[192828.984603] --- wd:1 rd:2
[192828.984622] disk 1, wo:0, o:1, dev:sdc2
--
RAID1 array affected by non-RAID swappable IDE disk
https://bugs.launchpad.net/bugs/313487
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