Comment # 6
on bug 1120087
from Gerben Jansen
Heeeeey, i did the suspend/resume one more time and this time dmesg shows
similar messages but now on the sdb1 device (which does contain /MyDisk)
also after the sdb1 device re-appeared it was automatically mounted again. (due
to the default "auto" option in the /etc/fstab)
However i can imagine that nfsd would like a device to disappear and re-appear
without getting into troubles
in the dmesg now told me (booted without the "debug printk.devkmsg=on" options:
[ 1384.440416] PM: Finishing wakeup.
[ 1384.440417] OOM killer enabled.
[ 1384.440418] Restarting tasks ... done.
[ 1384.467852] video LNXVIDEO:00: Restoring backlight state
[ 1384.480297] usb 2-1.1: USB disconnect, device number 3
[ 1384.520617] usb 1-1.5: new full-speed USB device number 10 using ehci-pci
[ 1384.544996] XFS (sdb1): Unmounting Filesystem
[ 1384.545072] XFS (sdb1): metadata I/O error: block 0x575e22cb ("xlog_iodone")
error 5 numblks 64
[ 1384.545079] XFS (sdb1): xfs_do_force_shutdown(0x2) called from line 1245 of
file ../fs/xfs/xfs_log.c. Return address = 0xffffffffa057f579
[ 1384.545090] XFS (sdb1): Log I/O Error Detected. Shutting down filesystem
[ 1384.545093] XFS (sdb1): Please umount the filesystem and rectify the
problem(s)
[ 1384.545098] XFS (sdb1): Unable to update superblock counters. Freespace may
not be correct on next mount.
[ 1384.572759] nfsd: last server has exited, flushing export cache
[ 1384.604764] usb 1-1.5: device descriptor read/64, error -32
[ 1384.796612] usb 1-1.5: device descriptor read/64, error -32
[ 1384.984666] usb 1-1.5: new full-speed USB device number 11 using ehci-pci
[ 1385.064664] usb 1-1.5: device descriptor read/64, error -32
[ 1385.252662] usb 1-1.5: device descriptor read/64, error -32
[ 1385.360935] usb 1-1-port5: attempt power cycle
[ 1385.964662] usb 1-1.5: new full-speed USB device number 12 using ehci-pci
[ 1386.380692] usb 1-1.5: device not accepting address 12, error -32
[ 1386.460673] usb 1-1.5: new full-speed USB device number 13 using ehci-pci
[ 1386.876648] usb 1-1.5: device not accepting address 13, error -32
[ 1386.876931] usb 1-1-port5: unable to enumerate USB device
[ 1387.828690] usb 2-1.1: new high-speed USB device number 5 using ehci-pci
[ 1387.938383] usb 2-1.1: New USB device found, idVendor=04e8, idProduct=5f06
[ 1387.938387] usb 2-1.1: New USB device strings: Mfr=1, Product=11,
SerialNumber=3
[ 1387.938390] usb 2-1.1: Product: Samsung STORY Station
[ 1387.938392] usb 2-1.1: Manufacturer: JMicron
[ 1387.938394] usb 2-1.1: SerialNumber: 0000002CE09310500C0B
[ 1387.939303] usb-storage 2-1.1:1.0: USB Mass Storage device detected
[ 1387.939465] scsi host4: usb-storage 2-1.1:1.0
[ 1388.996079] scsi 4:0:0:0: Direct-Access Samsung STORY Station
PQ: 0 ANSI: 2 CCS
[ 1388.996346] sd 4:0:0:0: Attached scsi generic sg1 type 0
[ 1388.997051] sd 4:0:0:0: [sdb] 2930277168 512-byte logical blocks: (1.50
TB/1.36 TiB)
[ 1388.998191] sd 4:0:0:0: [sdb] Write Protect is off
[ 1388.998193] sd 4:0:0:0: [sdb] Mode Sense: 28 00 00 00
[ 1388.999274] sd 4:0:0:0: [sdb] No Caching mode page found
[ 1388.999279] sd 4:0:0:0: [sdb] Assuming drive cache: write through
[ 1389.194081] sdb: sdb1
[ 1389.197639] sd 4:0:0:0: [sdb] Attached SCSI disk
[ 1390.466170] XFS (sdb1): Mounting V4 Filesystem
[ 1392.601746] XFS (sdb1): Ending clean mount
guppy:~ # df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 2.8G 0 2.8G 0% /dev
tmpfs 2.9G 8.0K 2.9G 1% /dev/shm
tmpfs 2.9G 1.7M 2.9G 1% /run
tmpfs 2.9G 0 2.9G 0% /sys/fs/cgroup
/dev/sdc2 20G 12G 8.9G 56% /
/dev/sda1 4.6T 3.1T 1.6T 67% /MyLib
/dev/sdc3 276G 7.8G 269G 3% /home
tmpfs 576M 0 576M 0% /run/user/481
tmpfs 576M 0 576M 0% /run/user/0
/dev/sdb1 1.4T 922G 475G 67% /MyDisk
Notice that the /MyDisk file system was removed (=unmounted) and added to the
end of the list of mounted file systems (=mounted) again.
These 2 file systems (/MyLib and /MyDisk) are on 2 external USB disks. Should
those disks disappear during/after a suspend=resume and is my file system even
safe a suspend/resume ???