** Changed in: hwe-next
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1454013
Title:
Booting takes very long time on Intel Braswell caused by eMMC
Status in HWE Next Project:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Trusty:
Fix Released
Status in linux source package in Utopic:
Fix Released
Status in linux source package in Vivid:
Fix Released
Status in linux source package in Wily:
Fix Released
Bug description:
This patch could fix this issue, otherwise booting will take very long
time.
4e93b9a6abc0d028daf3c8a00cb77b679d8a4df4
mmc: card: Don't access RPMB partitions for normal read/write
During kernel boot, it will try to read some logical sectors
of each block device node for the possible partition table.
But since RPMB partition is special and can not be accessed
by normal eMMC read / write CMDs, it will cause below error
messages during kernel boot:
...
mmc0: Got data interrupt 0x00000002 even though no data operation was in
progress.
mmcblk0rpmb: error -110 transferring data, sector 0, nr 32, cmd response
0x900, card status 0xb00
mmcblk0rpmb: retrying using single block read
mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
end_request: I/O error, dev mmcblk0rpmb, sector 0
Buffer I/O error on device mmcblk0rpmb, logical block 0
end_request: I/O error, dev mmcblk0rpmb, sector 8
Buffer I/O error on device mmcblk0rpmb, logical block 1
end_request: I/O error, dev mmcblk0rpmb, sector 16
Buffer I/O error on device mmcblk0rpmb, logical block 2
end_request: I/O error, dev mmcblk0rpmb, sector 24
Buffer I/O error on device mmcblk0rpmb, logical block 3
...
This patch will discard the access request in eMMC queue if
it is RPMB partition access request. By this way, it avoids
trigger above error messages.
Fixes: 090d25fe224c ("mmc: core: Expose access to RPMB partition")
Signed-off-by: Yunpeng Gao <yunpeng....@intel.com>
Signed-off-by: Chuanxiao Dong <chuanxiao.d...@intel.com>
Tested-by: Michael Shigorin <m...@altlinux.org>
Signed-off-by: Ulf Hansson <ulf.hans...@linaro.org>
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