[parisc-linux] documented Oops running big-endian reiserfs on parisc architecture
thunder7@xs4all.nl
thunder7@xs4all.nl
Sun, 2 Sep 2001 10:55:38 +0200
Well, I watched the number of files in /lost+found grow every time I
had to pull the plug from my HP C200, so I added a 'sync' option in
/etc/fstab and tried to get reiserfs working.
I patched my 2.4.9-pa13 kernel with
endian-safe-reiserfs-for-2.4.8.patch
which went without warnings or errors. A patched
reiserfs-progs-3.x.0k-pre9 also built well (despite what the configure
scripts says, you _need_ automake).
Creating a reiserfs-partition went without a hitch.
running bonnie -s 128 on it did this:
Adding Swap: 1041400k swap-space (priority -1)
eth0: Setting half-duplex based on MII#1 link partner capability of 0021.
reiserfs: checking transaction log (device 08:03) ...
Using r5 hash to sort names
ReiserFS version 3.6.25
bonnie[163]: Unaligned data reference 28
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110
r0-3 00000000 102ec550 10197d0c 26f24838
r4-7 26f24848 27054e40 00000011 00000020
r8-11 0000000a 26f06580 00000020 26f247a0
r12-15 27088d1c ffffffff 26f24838 00000001
r16-19 26f24708 faf02c68 0006a248 26f24852
r20-23 0000000f 00000003 03000000 00000002
r24-27 0000000a 0000000a 26f24848 102d4010
r28-31 26f24848 01000000 26f24b40 10196fc8
sr0-3 00000000 00000004 00000000 00000004
sr4-7 00000000 00000000 00000000 00000000
IASQ: 00000000 00000000 IAOQ: 10197d10 10197d14
IIR: 0c7c1093 ISR: 00000000 IOR: 26f24846
ORIG_R28: 00000000
pa8200:/var/log#
After reading in the archives about ksymoops, I looked up this part of
my System.map:
101979e0 T reiserfs_lookup
101979e0 t .L1432
10197ad4 t reiserfs_add_entry
10197e50 t .L1512
10197f28 t .L1510
10198068 T reiserfs_create
objdump -d /boot/linux-2.4.9-pa13 revealed:
10197cbc: d6 d6 0b 18 depw,z r22,7,8,r22
10197cc0: d6 b5 0a 10 depw,z r21,15,16,r21
10197cc4: 41 33 01 fe ldb ff(sr0,r9),r19
10197cc8: 0a d5 02 75 or r21,r22,r21
10197ccc: d6 94 09 08 depw,z r20,23,24,r20
10197cd0: 0a b4 02 74 or r20,r21,r20
10197cd4: 0a 93 02 73 or r19,r20,r19
10197cd8: d2 75 18 f8 extrw,u r19,7,8,r21
10197cdc: d2 74 19 f8 extrw,u r19,15,8,r20
10197ce0: 0c 73 12 16 stb r19,b(sr0,r3)
10197ce4: d2 73 1a f8 extrw,u r19,23,8,r19
10197ce8: 0c 75 12 10 stb r21,8(sr0,r3)
10197cec: 0c 74 12 12 stb r20,9(sr0,r3)
10197cf0: e8 86 a9 e4 b,l 102a51e8 <memcpy>,%r2
10197cf4: 0c 73 12 14 stb r19,a(sr0,r3)
10197cf8: 08 06 02 59 copy r6,r25
10197cfc: 08 04 02 5a copy r4,r26
10197d00: d7 20 1c 1d depwi 0,31,3,r25
10197d04: e8 0d a5 d8 call 101b1ff8 <padd_item>
10197d08: 08 08 02 58 copy r8,r24
10197d0c: 00 01 0e 74 rsm 1,r20
10197d10: 0c 7c 10 93 ldw e(sr0,r3),r19
10197d14: d6 60 1f 1f depwi 0,7,1,r19
10197d18: 0c 73 12 9c stw r19,e(sr0,r3)
10197d1c: 00 14 18 60 mtsm r20
10197d20: 85 e0 26 32 cmpib,=,n 0,r15,10198040 <.L1510+0x118>
10197d24: 00 01 0e 74 rsm 1,r20
10197d28: 0c 7c 10 93 ldw e(sr0,r3),r19
10197d2c: d6 7f 1f 5f depwi -1,5,1,r19
10197d30: 0c 73 12 9c stw r19,e(sr0,r3)
10197d34: 00 14 18 60 mtsm r20
10197d38: 08 00 02 54 copy r0,r20
10197d3c: 08 00 02 55 copy r0,r21
10197d40: 37 c6 3e 51 ldo -d8(sp),r6
10197d44: 37 cd 3d c1 ldo -120(sp),r13
10197d48: 6b d4 3e 51 stw r20,-d8(sr0,sp)
10197d4c: 6b d5 3e 59 stw r21,-d4(sr0,sp)
10197d50: 6b d4 3e 61 stw r20,-d0(sr0,sp)
10197d54: 6b d5 3e 69 stw r21,-cc(sr0,sp)
10197d58: 08 0c 02 59 copy r12,r25
10197d5c: 6b c6 3e 01 stw r6,-100(sr0,sp)
10197d60: 6b cd 3f 99 stw r13,-34(sr0,sp)
10197d64: 08 08 02 58 copy r8,r24
10197d68: 08 05 02 5a copy r5,r26
10197d6c: eb ff b4 4d b,l 10197798 <reiserfs_find_entry>,%r2
which makes the error somewhere around here in
fs/reiserfs/namei.c, function reiserfs_add_entry, after call to
padd_item, before call to reiserfs_find_entry:
/* copy name */
memcpy ((char *)(deh + 1), name, namelen);
/* padd by 0s to the 4 byte boundary */
padd_item ((char *)(deh + 1), ROUND_UP (namelen), namelen);
/* entry is ready to be pasted into tree, set 'visibility' and 'stat data in entry' attributes */
mark_de_without_sd (deh);
visible ? mark_de_visible (deh) : mark_de_hidden (deh);
/* find the proper place for the new entry */
memset (bit_string, 0, sizeof (bit_string));
de.de_gen_number_bit_string = (char *)bit_string;
retval = reiserfs_find_entry (dir, name, namelen, &path, &de);
And there I'm stuck. I'm sending this to the parisc-list to document the
failure, and to linux-kernel to reach some reiserfs-experts, perhaps.
I'm willing to test anything!
Good luck,
Jurriaan
--
"I have seen her. That is enough, perhaps."
Pug smiled. "You are a rare man."
Raymond E Feist - The King's Buccaneer
GNU/Linux 2.4.9-ac5 SMP/ReiserFS 2x1402 bogomips load av: 0.04 0.01 0.06