Public bug reported:
I use zram as swap device, but get Buffer I/O errors when creating a
swap device.
1. modprobe zram
2. echo 2097152000 > /sys/block/zram0/disksize
3. mkswap /dev/zram0
tail /varlog/syslog
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.003716] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.005792] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.007918] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.009930] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.011965] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.012917] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.013793] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.014680] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.015542] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.016395] Buffer I/O error on device
zram0, logical block 511999
cat /proc/version_signature
Ubuntu 3.8.0-29.42-generic 3.8.13.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "lspci -vnvn"
https://bugs.launchpad.net/bugs/1218278/+attachment/3792833/+files/lspci-vnvn.log
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https://bugs.launchpad.net/bugs/1218278
Title:
When creating a swap device using zram I get Buffer I/O errors
Status in “linux” package in Ubuntu:
New
Bug description:
I use zram as swap device, but get Buffer I/O errors when creating a
swap device.
1. modprobe zram
2. echo 2097152000 > /sys/block/zram0/disksize
3. mkswap /dev/zram0
tail /varlog/syslog
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.003716] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.005792] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.007918] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.009930] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.011965] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.012917] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.013793] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.014680] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.015542] Buffer I/O error on device
zram0, logical block 511999
Aug 29 12:07:01 ubz10035sev kernel: [ 1044.016395] Buffer I/O error on device
zram0, logical block 511999
cat /proc/version_signature
Ubuntu 3.8.0-29.42-generic 3.8.13.
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