Thiemo Nagel wrote: > Hello, > > the following can be observed reproducibly with 2.6.29-rc7 when filling > up a very small (2MB) file system: > > dd if=/dev/zero of=/file/inside/small/filesystem > > hangs, dmesg output is: > > [ 602.831279] EXT4-fs: barriers enabled > [ 602.862751] EXT4-fs warning: mounting fs with errors, running e2fsck > is recommended > [ 602.864165] kjournald2 starting: pid 5414, dev loop0:8, commit > interval 5 seconds > [ 602.864318] EXT4 FS on loop0, internal journal on loop0:8 > [ 602.864325] EXT4-fs: delayed allocation enabled > [ 602.864348] EXT4-fs: file extents enabled > [ 602.864669] EXT4-fs: mballoc enabled > [ 602.864674] EXT4-fs: recovery complete. > [ 602.869466] EXT4-fs: mounted filesystem loop0 with ordered data mode > [ 623.000911] JBD: barrier-based sync failed on loop0:8 - disabling > barriers > [ 633.432299] ------------[ cut here ]------------ > [ 633.432329] kernel BUG at fs/ext4/mballoc.c:3295! I don't see it: # dd if=/dev/zero of=2mbfile bs=1M count=2 # mkfs.ext4 -F 2mbfile # mount -o loop 2mbfile mnt/ # dd if=/dev/zero of=mnt/file dd: writing to `mnt/file': No space left on device 1917+0 records in 1916+0 records out 980992 bytes (981 kB) copied, 0.0162723 s, 60.3 MB/s is this more or less what you did? -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
