Hi,
I am trying to get the DMAPI stuff going on xfs again. I last played
with it back in the 2.4.25 kernel and it worked great.
I now want to resume the work that I started back then, but are unable
to get the dmapi to work on any recent kernel. I tried both 2.4.33 from
the cvs and 2.6.17 from the cvs. (Both checked out on 2006-08-26).
2.4.33 was unable to compile.
make[3]: Entering directory `/mnt/linux-2.4-xfs/fs/dmapi'
gcc -D__KERNEL__ -I/mnt/linux-2.4-xfs/include -Wall -Wstrict-prototypes
-Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer
-pipe -mpreferred-stack-boundary=2 -march=athlon -fno-unit-at-a-time
-fno-optimize-sibling-calls -DDEBUG -g -nostdinc -iwithprefix include
-DKBUILD_BASENAME=dmapi_sysent -DEXPORT_SYMTAB -c dmapi_sysent.c
dmapi_sysent.c:54: error: conflicting types for 'dm_fsreg_cachep'
dmapi_private.h:44: error: previous declaration of 'dm_fsreg_cachep' was
here
The following fixed that:
----------------------------------------------------------------------
--- /usr/src/linux-2.4-xfs/fs/dmapi/dmapi_private.h 2005-12-05
22:35:19.000000000 +0200
+++ linux-2.4-xfs/fs/dmapi/dmapi_private.h 2006-09-25
18:17:56.047674000 +0200
@@ -41,11 +41,11 @@
#define DMAPI_DBG_PROCFS "fs/dmapi_d" /* DMAPI debugging dir */
#endif
-extern struct kmem_cache *dm_fsreg_cachep;
-extern struct kmem_cache *dm_tokdata_cachep;
-extern struct kmem_cache *dm_session_cachep;
-extern struct kmem_cache *dm_fsys_map_cachep;
-extern struct kmem_cache *dm_fsys_vptr_cachep;
+extern kmem_cache_t *dm_fsreg_cachep;
+extern kmem_cache_t *dm_tokdata_cachep;
+extern kmem_cache_t *dm_session_cachep;
+extern kmem_cache_t *dm_fsys_map_cachep;
+extern kmem_cache_t *dm_fsys_vptr_cachep;
typedef struct dm_tokdata {
struct dm_tokdata *td_next;
--------------------------------------------------------------------
Then I had hit:
make[4]: Entering directory `/mnt/linux-2.4-xfs/fs/xfs/dmapi'
gcc -D__KERNEL__ -I/mnt/linux-2.4-xfs/include -Wall -Wstrict-prototypes
-Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer
-pipe -mpreferred-stack-boundary=2 -march=athlon -fno-unit-at-a-time
-fno-optimize-sibling-calls -I /mnt/linux-2.4-xfs/fs/xfs -I
/mnt/linux-2.4-xfs/fs/xfs/linux-2.4 -I /mnt/linux-2.4-xfs/fs/dmapi
-nostdinc -iwithprefix include -DKBUILD_BASENAME=xfs_dm -c -o xfs_dm.o
xfs_dm.c
In file included from /mnt/linux-2.4-xfs/fs/xfs/xfs.h:25,
from xfs_dm.c:18:
/mnt/linux-2.4-xfs/fs/xfs/linux-2.4/xfs_linux.h:35:18: warning: extra
tokens at end of #undef directive
xfs_dm.c: In function `xfs_dm_set_fileattr':
xfs_dm.c:2913: error: request for member `tv_sec' in something not a
structure or union
make[4]: *** [xfs_dm.o] Error 1
make[4]: Leaving directory `/mnt/linux-2.4-xfs/fs/xfs/dmapi'
make[3]: *** [first_rule] Error 2
make[3]: Leaving directory `/mnt/linux-2.4-xfs/fs/xfs/dmapi'
make[2]: *** [_subdir_dmapi] Error 2
make[2]: Leaving directory `/mnt/linux-2.4-xfs/fs/xfs'
make[1]: *** [_subdir_xfs] Error 2
make[1]: Leaving directory `/mnt/linux-2.4-xfs/fs'
make: *** [_dir_fs] Error 2
I then did: (which I know is not a proper fix, but I was desperate to
get it to compile and was'nt too concerned about atime problems)
----------------------------------------------------------------------
-------------------- /usr/src/linux-2.4-xfs/fs/xfs/dmapi/xfs_dm.c
2006-08-26 16:01:18.000000000 +0200
+++ linux-2.4-xfs/fs/xfs/dmapi/xfs_dm.c 2006-09-25 18:29:49.836283000
+0200
@@ -2910,7 +2910,7 @@
vat.va_mask |= XFS_AT_ATIME;
vat.va_atime.tv_sec = stat.fa_atime;
vat.va_atime.tv_nsec = 0;
- inode->i_atime.tv_sec = stat.fa_atime;
+// inode->i_atime.tv_sec = stat.fa_atime;
}
if (mask & DM_AT_MTIME) {
vat.va_mask |= XFS_AT_MTIME;
----------------------------------------------------------------------
It did compile then, but could not mount a filesystem with dmapi.
Unfortunatedly I did'nt save the kernel output.
The 2.6.17 compiled cleanly, but also could not mount.
I got the following dump:
[17179626.228000] kobject xfs: registering. parent: <NULL>, set: module
[17179626.228000] kobject_uevent
[17179626.228000] fill_kobj_path: path = '/module/xfs'
[17179626.244000] SGI-XFS CVS-2006-08-26_07:00_UTC with ACLs, security
attributes, realtime, large block numbers, tracing, debug enabled
[17179626.248000] xfs_dmapi: module license 'unspecified' taints kernel.
[17179626.252000] kobject xfs_dmapi: registering. parent: <NULL>, set:
module
[17179626.252000] kobject_uevent
[17179626.252000] fill_kobj_path: path = '/module/xfs_dmapi'
[17179626.264000] SGI XFS Data Management API subsystem
[17179626.264000] ftype_list/348: Current ftype_list
[17179626.264000] ftype_list/351: FS 0xdc3733c0, ftype 0xe15bc080 xfs
[17179626.264000] ftype_list/353: Done ftype_list
[17179649.888000] Large kmem_alloc attempt, size=6144
[17179649.888000] <c01040c0> show_trace+0x20/0x30 <c01041de>
dump_stack+0x1e/0x20
[17179649.888000] <e1572df4> kmem_alloc+0x134/0x140 [xfs] <e1572e1e>
kmem_zalloc+0x1e/0x50 [xfs]
[17179649.888000] <e1571fa8> xfs_alloc_bufhash+0x48/0xd0 [xfs]
<e1572473> xfs_alloc_buftarg+0x63/0x90 [xfs]
[17179649.888000] <e15530cc> xfs_mount+0x24c/0x730 [xfs] <e156e46b>
vfs_mount+0x9b/0xb0 [xfs]
[17179649.892000] <e0c78074> xfs_dm_mount+0x74/0x130 [xfs_dmapi]
<e156e46b> vfs_mount+0x9b/0xb0 [xfs]
[17179649.892000] <e156e20a> xfs_fs_fill_super+0x9a/0x230 [xfs]
<c0168560> get_sb_bdev+0x100/0x170
[17179649.892000] <e156e3ce> xfs_fs_get_sb+0x2e/0x30 [xfs] <c01687e6>
do_kern_mount+0x56/0xd0
[17179649.892000] <c0180db8> do_new_mount+0x58/0xb0 <c018147f>
do_mount+0x19f/0x1d0
[17179649.892000] <c0181837> sys_mount+0x97/0xe0 <c0103283>
sysenter_past_esp+0x54/0x75
[17179649.892000] Filesystem "md1": Disabling barriers, not supported by
the underlying device
[17179649.912000] XFS mounting filesystem md1
[17179650.028000] Ending clean XFS mount for filesystem: md1
[17179650.028000] ftype_list/348: Current ftype_list
[17179650.028000] ftype_list/351: FS 0xdc3733c0, ftype 0xe15bc080 xfs
[17179650.028000] ftype_list/353: Done ftype_list
[17179650.028000] sb_list/330: Current sb_list
[17179650.028000] sb_list/335: Done sb_list
[17179650.028000] ftype_list/348: Current ftype_list
[17179650.028000] ftype_list/351: FS 0xdc3733c0, ftype 0xe15bc080 xfs
[17179650.028000] ftype_list/353: Done ftype_list
[17179650.028000] DMAPI assertion failed: fstype, file:
fs/dmapi/dmapi_mountinfo.c, line: 280
[17179650.028000] ------------[ cut here ]------------
[17179650.028000] kernel BUG at fs/dmapi/dmapi_port.h:72!
[17179650.028000] invalid opcode: 0000 [#1]
[17179650.028000] PREEMPT
[17179650.028000] Modules linked in: xfs_dmapi xfs tuner saa7134
video_buf compat_ioctl32 v4l2_common v4l1_compat ir_kbd_i2c ir_common
videodev ohci1394 ieee
1394 pdc202xx_new ide_cd cdrom
[17179650.028000] CPU: 0
[17179650.028000] EIP: 0060:[<c019f7c4>] Tainted: P VLI
[17179650.028000] EFLAGS: 00010296 (2.6.17-dmapi #1)
[17179650.028000] EIP is at dm_fsys_map_by_fstype+0x64/0x70
[17179650.028000] eax: 00000061 ebx: 00000000 ecx: 00000000 edx:
00000001
[17179650.028000] esi: 00000000 edi: dc368d2c ebp: dc2ffc9c esp:
dc2ffc84
[17179650.028000] ds: 007b es: 007b ss: 0068
[17179650.028000] Process mount (pid: 2836, threadinfo=dc2fe000
task=df97c0b0)
[17179650.028000] Stack: c0554fb8 c054f4ac c054f488 00000118 dc368d2c
00000000 dc2ffcc8 c019f846
[17179650.028000] 00000000 c019f9ac c054f501 c051e534 00000161
dc3733c0 e15bc080 dc368d2c
[17179650.028000] 00000000 dc2ffcf4 c019faa0 e1574680 dfeef4c4
dc2ffd08 c015ceca c14b0960
[17179650.028000] Call Trace:
[17179650.028000] <c0104160> show_stack_log_lvl+0x90/0xc0 <c0104383>
show_registers+0x1a3/0x220
[17179650.028000] <c01045a8> die+0x118/0x240 <c0104757>
do_trap+0x87/0xd0
[17179650.028000] <c0104a35> do_invalid_op+0xb5/0xc0 <c0103d7f>
error_code+0x4f/0x54
[17179650.028000] <c019f846> sb_list+0x16/0xf0 <c019faa0>
dm_fsys_ops+0x30/0x1e0
[17179650.028000] <c01a1200> dm_ip_to_handle+0x20/0x100 <c019db99>
dm_ip_data+0xa9/0x110
[17179650.028000] <c019e142> dm_send_mount_event+0x72/0x430 <e0c7812c>
xfs_dm_mount+0x12c/0x130 [xfs_dmapi]
[17179650.028000] <e156e46b> vfs_mount+0x9b/0xb0 [xfs] <e156e20a>
xfs_fs_fill_super+0x9a/0x230 [xfs]
[17179650.028000] <c0168560> get_sb_bdev+0x100/0x170 <e156e3ce>
xfs_fs_get_sb+0x2e/0x30 [xfs]
[17179650.028000] <c01687e6> do_kern_mount+0x56/0xd0 <c0180db8>
do_new_mount+0x58/0xb0
[17179650.028000] <c018147f> do_mount+0x19f/0x1d0 <c0181837>
sys_mount+0x97/0xe0
[17179650.028000] <c0103283> sysenter_past_esp+0x54/0x75
[17179650.028000] Code: c6 5b 89 f0 5e c9 c3 c7 44 24 0c 18 01 00 00 c7
44 24 08 88 f4 54 c0 c7 44 24 04 ac f4 54 c0 c7 04 24 b8 4f 55 c0 e8 8c
da f7 ff <0f>
0b 48 00 72 f4 54 c0 eb a3 89 f6 55 89 e5 56 31 f6 53 83 ec
[17179650.028000] EIP: [<c019f7c4>] dm_fsys_map_by_fstype+0x64/0x70
SS:ESP 0068:dc2ffc84
[17179650.028000] <6>note: mount[2836] exited with preempt_count 1
[17179652.952000] BUG: sleeping function called from invalid context at
include/linux/rwsem.h:43
[17179652.952000] in_atomic():1, irqs_disabled():0
[17179652.952000] <c01040c0> show_trace+0x20/0x30 <c01041de>
dump_stack+0x1e/0x20
[17179652.952000] <c01195c1> __might_sleep+0xa1/0xc0 <c011ec0c>
exit_mm+0x3c/0x140
[17179652.952000] <c011f4ba> do_exit+0xda/0x460 <c01046ca>
die+0x23a/0x240
[17179652.952000] <c0104757> do_trap+0x87/0xd0 <c0104a35>
do_invalid_op+0xb5/0xc0
[17179652.952000] <c0103d7f> error_code+0x4f/0x54 <c019f846>
sb_list+0x16/0xf0
[17179652.952000] <c019faa0> dm_fsys_ops+0x30/0x1e0 <c01a1200>
dm_ip_to_handle+0x20/0x100
[17179652.952000] <c019db99> dm_ip_data+0xa9/0x110 <c019e142>
dm_send_mount_event+0x72/0x430
[17179652.952000] <e0c7812c> xfs_dm_mount+0x12c/0x130 [xfs_dmapi]
<e156e46b> vfs_mount+0x9b/0xb0 [xfs]
[17179652.952000] <e156e20a> xfs_fs_fill_super+0x9a/0x230 [xfs]
<c0168560> get_sb_bdev+0x100/0x170
[17179652.952000] <e156e3ce> xfs_fs_get_sb+0x2e/0x30 [xfs] <c01687e6>
do_kern_mount+0x56/0xd0
[17179652.956000] <c0180db8> do_new_mount+0x58/0xb0 <c018147f>
do_mount+0x19f/0x1d0
[17179652.956000] <c0181837> sys_mount+0x97/0xe0 <c0103283>
sysenter_past_esp+0x54/0x75
I used "mount /dev/md1 -o dmapi,mtpt=/mnt /mnt" to try and mount the
filesystem in all the cases (which worked great back in 2.4.25).
I would appreciate any help.
Regards
Paul Schutte