Hi, On Wed, 22 May 2013 22:36:02 +0200, Anton Eliasson wrote: > Anton Eliasson skrev 2013-05-22 22:33: >> Greetings! >> It pains me to report that my /home filesystem broke down today. My >> system is running Arch Linux 64-bit. The filesystem resides on a >> Crucial M4 256 GB SSD, on top of a LVM2 volume. The drive and >> filesystem are both around six months old. Partition table and error >> log excerpts are at the bottom of this e-mail. Full logs are available >> upon request. >> >> I am providing this information as a bug report. I have no reason to >> suspect the hardware but I cannot exclude it either. If you (the >> developers) are interested in troubleshooting this for prosperity, I >> can be your hands and run whatever tools are required. If not, I'll >> reformat the filesystem, restore the data from backup and forget that >> this happened. >> >> In case the formatting gets mangled, this e-mail is also available at > Right here: http://paste.debian.net/5841/ Thank you for the report. According to the log, btree of a regular file is destroyed for some reason. I think we should look into how the btree block is broken. Could you try the following commands to inspect the broken disk segment ? $ sudo dd if=/dev/dm-3 bs=4k count=2048 skip=14350336 iflag=direct 2>/dev/null | hexdump -C This will print out blocks of the segment 7007 which includes the broken btree block. The following commands are also useful to get debug information. Could you try them, too ? $ sudo nilfs-tune -l /dev/dm-3 $ sudo dumpseg /dev/dm-3 7007 $ lssu -a /dev/dm-3 The third command requires the device is mounted, so /home should be mounted previously with a readonly option and a norecovery option: $ sudo mount -t nilfs2 -o ro,norecovery /dev/dm-3 /home With regards, Ryusuke Konishi > -- > Best Regards, > Anton Eliasson > > -- > To unsubscribe from this list: send the line "unsubscribe linux-nilfs" > in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
