From mboxrd@z Thu Jan 1 00:00:00 1970 From: Carl Henrik Lunde Subject: Reiser4 on PowerPC, oops and more Date: Sun, 10 Oct 2004 23:32:53 +0200 Message-ID: <87acuufed6.wl@pitr.ping.uio.no> Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: reiserfs-list@namesys.com Hi, I know it's not supposed to work (yet), but I thought you might be interrested in these logs (from a 32 bit PPC machine): First I tried mounting a partition formatted with mkfs.reiserfs4 on the PowerPC machine (2.6.9-rc3-mm-3): ef_hash_table: 8192 buckets z_hash_table: 8192 buckets z_hash_table: 8192 buckets j_hash_table: 16384 buckets loading reiser4 bitmap......done (771 jiffies) d_cursor_hash_table: 256 buckets reiser4[mount(823)]: key_warning (fs/reiser4/plugin/object.c:97)[nikita-717]: code: -2 at fs/reiser4/tree_walk.c:193 WARNING: Error for inode 720575940379279360 (-2) for key: (910200000000000:0:0:2:a00000000000000:0)[*] inode: ino: 0, count: 1, link: 1, mode: 0, size: 0 uid: 0, gid: 0, dev: 3145733, rdev: 0 atime: [0,0], mtime: [0,0], ctime: [0,0] blkbits: 12, blksize: 0, blocks: 0, bytes: 0 version: 0, generation: 0, state: 72, flags: 0 is_reiser4_inode: 1 key: (910200000000000:1:ffffffffffffffff:0:a00000000000000:0)[stat data] file: (nil) dir: (nil) perm: (nil) formatting: (nil) hash: (nil) sd: (nil) sd_seal: version: 0, block: 0 seal key: (0:0:0:0:0:0)[] seal coord: item_pos = 0, unit_pos 0, tween=before unit, iplug=0 sd_coord: item_pos = 0, unit_pos 0, tween=invalid, iplug=255 flags: 0x0, extmask: 0x0, pmask: 0, locality: 653057130340810752 Then I tried mounting a file made with mkfs.reiser4/IA32 on the PowerPC machine: $ sudo mount -o loop reiser4-from-ia32 /mnt Message from syslogd@pitr at Sun Oct 10 21:25:03 2004 ... pitr kernel: reiser4 panicked cowardly: assertion failed: atomic_read(&node->d_count) > 0 loop: loaded (max 8 devices) ef_hash_table: 8192 buckets z_hash_table: 8192 buckets z_hash_table: 8192 buckets j_hash_table: 16384 buckets loading reiser4 bitmap...<4>reiser4[mount(1083)]: check_struct_bnode (fs/reiser4/plugin/space/bitmap.c:725)[vpf-1361]: WARNING: Checksum for the bitmap block 18 is incorrect reiser4[mount(1083)]: jrelse_tail (fs/reiser4/jnode.c:1023)[nikita-489]: reiser4 panicked cowardly: assertion failed: atomic_read(&node->d_count) > 0 pid: 1083, comm: mount lock stack: .... nr_signaled 0 .... curpri high .... current locks: atom: no atom kernel BUG in reiser4_do_panic at fs/reiser4/debug.c:131! Oops: Exception in kernel mode, sig: 5 [#1] NIP: C009E194 LR: C009DFE8 SP: D2879910 REGS: d2879860 TRAP: 0700 Not tainted MSR: 00029032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = d32103b0[1083] 'mount' THREAD: d2878000Last syscall: 120 GPR00: C043A69C D2879910 D32103B0 00000000 00000001 FFFFFFFF C0440000 C0390000 GPR08: C043A69C C043A69C C043A69C C043A69C 82002424 1002AE6C 100C0000 100A0000 GPR16: 00000000 00000000 10010000 7FFFF718 C0340000 C0360000 C0320000 C0370000 GPR24: D74A3010 C0910C00 D53C72E0 00000000 00000001 C0450000 4B1B5D0B D2879D00 NIP [c009e194] reiser4_do_panic+0x28c/0x2a0 LR [c009dfe8] reiser4_do_panic+0xe0/0x2a0 Call trace: [c00a2504] jrelse_tail+0xd8/0x1b0 [c019d80c] release+0x18/0x1c0 [c019da18] done_bnode+0x64/0x68 [c01a0f88] destroy_allocator_bitmap+0xdc/0x2c8 [c01a0dec] init_allocator_bitmap+0x1d4/0x294 [c01a21a4] try_init_format40+0x380/0x4d0 [c01a2310] get_ready_format40+0x1c/0x17c [c0115958] _init_disk_format+0x2c/0x80 [c0116044] reiser4_fill_super+0x54/0xdc [c0069b78] get_sb_bdev+0x150/0x1cc [c01075d4] reiser4_get_sb+0x18/0x28 [c0069e7c] do_kern_mount+0x64/0x128 [c008126c] do_new_mount+0x94/0xc4 [c00819c8] do_mount+0x158/0x190 [c0081e50] sys_mount+0xa4/0xf4 So there are endian-related bugs both in the user space tools and kernel driver. Here are the kernel messages from 2.6.8 + debian patches + reiserfs4-patches from debian, when mounting an image made on IA32: reiser4[mount(26854)]: check_struct_bnode (fs/reiser4/plugin/space/bitmap.c:724)[vpf-1361]: WARNING: Checksum for the bitmap block 18 is incorrect Oops: kernel access of bad area, sig: 11 [#1] NIP: C009B720 LR: C00A4F80 SP: CF157CA0 REGS: cf157bf0 TRAP: 0300 Not tainted MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 DAR: 00000000, DSISR: 40000000 TASK = d4bef320[26854] 'mount' THREAD: cf156000Last syscall: 120 GPR00: C00A4F80 CF157CA0 D4BEF320 00000000 C000B32C 00E00000 00000000 00049032 GPR08: 00000000 00000000 00002000 00000001 0724EA46 1002AE6C 100C0000 100A0000 GPR16: 00000000 100EF3C8 00000000 00000000 7FFFFAE9 00000000 10020000 00000000 GPR24: 7FFFFAF1 C02728F0 CF157D30 C0935200 C7100818 C7100818 C7100840 C7100818 NIP [c009b720] znodes_tree_done+0x3c/0x288 LR [c00a4f80] done_tree+0x4c/0x78 Call trace: [c00a4f80] done_tree+0x4c/0x78 [c00c2dd8] _done_formatted_fake+0x28/0x48 [c00c31f8] done_super+0x48/0x64 [c00c329c] reiser4_fill_super+0x88/0x90 [c0066fc4] get_sb_bdev+0x150/0x1c0 [c00bc4cc] reiser4_get_sb+0x18/0x28 [c00672ac] do_kern_mount+0x64/0x128 [c007deec] do_new_mount+0x94/0xc4 [c007e618] do_mount+0x158/0x190 [c007eaa0] sys_mount+0xa4/0xf4 [c0007d30] ret_from_syscall+0x0/0x4c (I tried reiser4progs 1.0.2 too. Note that the -mm3 kernel is probably not stable on PowerPC, programs such as firefox crashed at startup.) I also took a quick search for non-byteswapped 32 bit integers, and found that at least the alloc block checksum is not byteswapped (when creating an image on PPC). -- Carl Henrik Lunde