On Wed, Aug 03, 2016 at 05:50:26PM +0300, Török Edwin wrote: > I have just encountered a similar problem after I've recently upgraded to 4.7.0: > [Wed Aug 3 11:08:57 2016] EXT4-fs error (device dm-1): dx_probe:740: inode #13295: comm python: Directory index failed checksum > [Wed Aug 3 11:08:57 2016] Aborting journal on device dm-1-8. > [Wed Aug 3 11:08:57 2016] EXT4-fs (dm-1): Remounting filesystem read-only > [Wed Aug 3 11:08:57 2016] EXT4-fs error (device dm-1): ext4_journal_check_start:56: Detected aborted journal > > I've rebooted in single-user mode, fsck fixed the filesystem, and rebooted, filesystem is rw again now. > > inode #13295 seems to be this and I can list it now: > stat /usr/lib64/python3.4/site-packages > File: '/usr/lib64/python3.4/site-packages' > Size: 12288 Blocks: 24 IO Block: 4096 directory > Device: fd01h/64769d Inode: 13295 Links: 180 > Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root) > Access: 2016-05-09 11:29:44.056661988 +0300 > Modify: 2016-08-01 00:34:24.029779875 +0300 > Change: 2016-08-01 00:34:24.029779875 +0300 > Birth: - > > The filesystem was /, I only noticed it was readonly after several hours when I tried to install something: > /dev/mapper/vg--ssd-root on / type ext4 (rw,noatime,errors=remount-ro,data=ordered) > > $ uname -a > Linux bolt 4.7.0-gentoo-rr #1 SMP Thu Jul 28 11:28:56 EEST 2016 x86_64 AMD FX(tm)-8350 Eight-Core Processor AuthenticAMD GNU/Linux > > FWIW I've been using ext4 for years and this is the first time I see this message. > Prior to 4.7 I was on 4.6.1 -> 4.6.2 -> 4.6.3 -> 4.6.4. > > The kernel is from gentoo-sources + a patch for enabling AMD LWP (I had that patch since 4.6.3 and its not related to I/O). > > If I see this message again what should I do to obtain more information to trace down the root cause? It just happened again to me, this time hitting /usr/sbin/ on root fs. Meanwhile I ran memtest86 7.0 for two nights, it didn't find anything. I'm using hibernate regularly and I think so this only happened after a few hibernate/resume cycles, but no idea if that means anything. Now I'm back at 4.4.16 to see if it reproduces. Johannes -- 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
