Messages in this thread | | | Subject | Re: mkfs.f2fs gets stuck with "blk_update_request: bio idx 0 >= vcnt 0" on 3.8 | From | Vyacheslav Dubeyko <> | Date | Tue, 02 Apr 2013 10:27:25 +0400 |
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On Tue, 2013-04-02 at 00:21 +0400, Max Filippov wrote:
[snip] > > > > Could you share "cat /proc/partitions" and "strace mkfs.f2fs /dev/mmcblk0p3" outputs? I think that these outputs can be very useful for issue analysis. > > > > By the way, can you reproduce the issue on another SD-card? Do you reproduce the issue only under pandaboard? > > Yes, I can reproduce it on three SD cards of different vendors and different sizes. > Unfortunately ATM I don't have any other board to try it on. > > # cat /proc/partitions > major minor #blocks name > > 179 0 7782400 mmcblk0 > 179 1 40131 mmcblk0p1 > 179 2 32130 mmcblk0p2 > 179 3 5685248 mmcblk0p3 >
As I see, you have several partition on your SD-card. How did it prepared?
> strace output is the following: > [snip] > write(1, "Info: sector size = 512\n", 24) = 24 > write(1, "Info: total sectors = 11370496 ("..., 45) = 45 > write(1, "Info: zone aligned segment0 blka"..., 41) = 41 > fstat64(3, {st_mode=S_IFBLK|0660, st_rdev=makedev(179, 3), ...}) = 0 > ioctl(3, BLKDISCARD
As I understand, the BLKDISCARD ioctl (to pre-discard all blocks on an ssd, or a thinly-provisioned storage device) is a visible reason of the issue. Unfortunately, as I see, mkfs.f2fs doesn't support option to format partition without blocks discard step.
So, I think that it needs to investigate issue in the direction of BLKDISCARD code on the kernel side. It makes sense to debug f2fs_trim_device() method of mkfs.f2fs utility too. But I can't see anything strange in this function at a glance.
With the best regards, Vyacheslav Dubeyko.
> >
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