Hello. I'm using sys-fs/reiserfsprogs-3.6.27. The 5.8 kernel refuses to mount a reiser partition: $ /bin/mount /dev/mapper/5 /5 [ 203.691395] REISERFS (device dm-1): found reiserfs format "3.6" with standard journal [ 203.691429] REISERFS (device dm-1): using ordered data mode [ 203.691431] reiserfs: using flush barriers [ 203.719044] REISERFS (device dm-1): journal params: device dm-1, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 203.719364] REISERFS (device dm-1): checking transaction log (dm-1) [ 203.732153] loop: Write error at byte offset 5402468352, length 4096. [ 203.732167] blk_update_request: I/O error, dev loop5, sector 65936 op 0x1:(WRITE) flags 0x800 phys_seg 1 prio class 0 [ 203.732172] blk_update_request: I/O error, dev loop5, sector 65936 op 0x1:(WRITE) flags 0x800 phys_seg 1 prio class 0 [ 203.732190] Buffer I/O error on dev dm-1, logical block 8210, lost sync page write [ 203.732213] REISERFS warning (device dm-1): journal-837 _update_journal_header_block: IO error during journal replay [ 203.732219] REISERFS warning (device dm-1): reiserfs-2006 journal_init: Replay Failure, unable to mount [ 203.732474] REISERFS warning (device dm-1): sh-2022 reiserfs_fill_super: unable to initialize journal space This is the 5.8.12 kernel. The file system is on a dmcrypt device $ dmsetup status 5 0 167192565 crypt which is mapped from a loopback device, which is mapped from an offset from a raw partition. $ losetup -a /dev/loop5 /dev/loop5: [0005]:6284 (/dev/sda5), offset 5368709120 $ fdisk | grep sda[45] Device Boot Start End Blocks Id System /dev/sda4 187655265 625137344 218741040 5 Extended /dev/sda5 187655328 365334164 88839418+ 83 Linux The reiser partition is over a decade old and has been very reliable. Running fsck finds no problems. And the partition mounts fine and is usable with the 5.7 kernel. Any ideas what the problem might be? The dmesg output looks bogus and suggests to me that a write is failing somewhere. I suspect it is the device layer which has changed. If there is a bug to be filed where should I file it? I'd Appreciate any clues. ---Madhu
