Hello, there.
Eric Windisch wrote:
<--snip-->
[4294682.866000] XXX bd_claim 3:2/3:0 1@c0406572 1@c0162830
[4294682.866000] <c01628d6> bd_claim+0xa6/0x130 <c0162830> bd_claim+0x0/0x130
[4294682.867000] <c0163001> bd_claim_by_disk+0x91/0x1b0 <c0314615> open_dev+0x55/0xa0
[4294682.867000] <c03153fd> dm_get_device+0x19d/0x470 <c0233fd7> vsscanf+0x4b7/0x530
[4294682.867000] <c0315fcf> linear_ctr+0xaf/0x130 <c0314f4b> dm_table_add_target+0x17b/0x2f0
[4294682.867000] <c0317e6f> table_load+0xff/0x220 <c0317371> ctl_ioctl+0x1c1/0x2e0
[4294682.868000] <c0317d70> table_load+0x0/0x220 <c016e176> do_ioctl+0x76/0x80
[4294682.868000] <c016e1d2> vfs_ioctl+0x52/0x2c0 <c016e4c8> sys_ioctl+0x88/0xa0
[4294682.868000] <c0102c33> syscall_call+0x7/0xb
[4294682.941000] XXX bd_claim 3:2/3:0 2@c0406572 2@c0162830
[4294682.941000] <c01628d6> bd_claim+0xa6/0x130 <c0162830> bd_claim+0x0/0x130
[4294682.941000] <c0163001> bd_claim_by_disk+0x91/0x1b0 <c0314615> open_dev+0x55/0xa0
[4294682.942000] <c03153fd> dm_get_device+0x19d/0x470 <c0233fd7> vsscanf+0x4b7/0x530
[4294682.942000] <c0315fcf> linear_ctr+0xaf/0x130 <c0314f4b> dm_table_add_target+0x17b/0x2f0
[4294682.942000] <c0317e6f> table_load+0xff/0x220 <c0317371> ctl_ioctl+0x1c1/0x2e0
[4294682.942000] <c0317d70> table_load+0x0/0x220 <c016e176> do_ioctl+0x76/0x80
[4294682.943000] <c016e1d2> vfs_ioctl+0x52/0x2c0 <c016e4c8> sys_ioctl+0x88/0xa0
[4294682.943000] <c0102c33> syscall_call+0x7/0xb
[4294683.015000] XXX bd_claim 3:2/3:0 3@c0406572 3@c0162830
[4294683.016000] <c01628d6> bd_claim+0xa6/0x130 <c0162830> bd_claim+0x0/0x130
[4294683.016000] <c0163001> bd_claim_by_disk+0x91/0x1b0 <c0314615> open_dev+0x55/0xa0
[4294683.016000] <c03153fd> dm_get_device+0x19d/0x470 <c0233fd7> vsscanf+0x4b7/0x530
[4294683.016000] <c0315fcf> linear_ctr+0xaf/0x130 <c0314f4b> dm_table_add_target+0x17b/0x2f0
[4294683.017000] <c0317e6f> table_load+0xff/0x220 <c0317371> ctl_ioctl+0x1c1/0x2e0
[4294683.017000] <c0317d70> table_load+0x0/0x220 <c016e176> do_ioctl+0x76/0x80
[4294683.017000] <c016e1d2> vfs_ioctl+0x52/0x2c0 <c016e4c8> sys_ioctl+0x88/0xa0
[4294683.017000] <c0102c33> syscall_call+0x7/0xb
/dev/hda2 is exclusively opened three times by dm.
[4294683.087000] Attempting manual resume
[4294683.115000] XXX bd_claim 253:0/253:0 2@c0442a60 2@c0442a60
[4294683.115000] <c01628d6> bd_claim+0xa6/0x130 <c0163ae5> open_bdev_excl+0x65/0x90
[4294683.115000] <c01623af> get_sb_bdev+0x2f/0x15a <c01422a3> __alloc_pages+0x53/0x310
[4294683.115000] <c01deab0> ext3_get_sb+0x30/0x40 <c01e0a60> ext3_fill_super+0x0/0x17f0
[4294683.116000] <c0161af9> do_kern_mount+0xd9/0x190 <c0178f09> do_mount+0x3f9/0x770
[4294683.116000] <c014a418> __handle_mm_fault+0x678/0x830 <c016b7bb> do_path_lookup+0x8b/0x200
[4294683.116000] <c0168f3f> getname+0xdf/0x110 <c01422a3> __alloc_pages+0x53/0x310
[4294683.117000] <c0113b30> do_page_fault+0x0/0x701 <c01427ee> __get_free_pages+0x1e/0x50
[4294683.118000] <c0177b68> copy_mount_options+0x48/0x160 <c0179318> sys_mount+0x98/0xe0
[4294683.118000] <c0102c33> syscall_call+0x7/0xb
Hmmm... maybe, created dm device being mounted.
<--snip-->
[4294694.160000] XXX bd_claim 253:2/253:2 2@c01525b0 2@c01525b0
[4294694.160000] <c01628d6> bd_claim+0xa6/0x130 <c01525b0> sys_swapon+0x0/0xb50
[4294694.161000] <c01525b0> sys_swapon+0x0/0xb50 <c01528c2> sys_swapon+0x312/0xb50
[4294694.161000] <c01525b0> sys_swapon+0x0/0xb50 <c0113c67> do_page_fault+0x137/0x701
[4294694.161000] <c0102bcb> sysenter_past_esp+0x54/0x75
Swap on the dm device (right?)
[4294705.726000] XXX bd_claim 3:0 failed 3@c0162830
[4294705.726000] device-mapper: dm-linear: Device lookup failed
[4294705.726000] device-mapper: error adding target to table
[4294705.728000] XXX bd_claim 3:0 failed 3@c0162830
[4294705.728000] device-mapper: dm-linear: Device lookup failed
[4294705.728000] device-mapper: error adding target to table
[4294705.730000] XXX bd_claim 3:0 failed 3@c0162830
[4294705.730000] device-mapper: dm-linear: Device lookup failed
[4294705.731000] device-mapper: error adding target to table
[4294705.733000] XXX bd_claim 3:0 failed 3@c0162830
[4294705.733000] device-mapper: dm-linear: Device lookup failed
[4294705.733000] device-mapper: error adding target to table
hda is already grabbed. dm is trying to open the device exclusively
again with a different id, which is correctly denied. Is this normal
behavior?
[4294705.735000] XXX bd_claim 8:0/8:0 2@c0406572 2@c0406572
[4294705.735000] <c01628d6> bd_claim+0xa6/0x130 <c0163001> bd_claim_by_disk+0x91/0x1b0
[4294705.735000] <c0314615> open_dev+0x55/0xa0 <c03153fd> dm_get_device+0x19d/0x470
[4294705.736000] <c0233fd7> vsscanf+0x4b7/0x530 <c0315fcf> linear_ctr+0xaf/0x130
[4294705.736000] <c0314f4b> dm_table_add_target+0x17b/0x2f0 <c0317e6f> table_load+0xff/0x220
[4294705.736000] <c0317371> ctl_ioctl+0x1c1/0x2e0 <c013f305> __generic_file_aio_write_nolock+0x285/0x490
[4294705.737000] <c0317d70> table_load+0x0/0x220 <c016e176> do_ioctl+0x76/0x80
[4294705.737000] <c016e1d2> vfs_ioctl+0x52/0x2c0 <c016e4c8> sys_ioctl+0x88/0xa0
[4294705.737000] <c0102bcb> sysenter_past_esp+0x54/0x75
[4294705.740000] XXX bd_claim 8:16/8:16 2@c0406572 2@c0406572
[4294705.740000] <c01628d6> bd_claim+0xa6/0x130 <c0163001> bd_claim_by_disk+0x91/0x1b0
[4294705.740000] <c0314615> open_dev+0x55/0xa0 <c03153fd> dm_get_device+0x19d/0x470
[4294705.740000] <c0233fd7> vsscanf+0x4b7/0x530 <c0315fcf> linear_ctr+0xaf/0x130
[4294705.741000] <c0314f4b> dm_table_add_target+0x17b/0x2f0 <c0317e6f> table_load+0xff/0x220
[4294705.741000] <c0317371> ctl_ioctl+0x1c1/0x2e0 <c0173b33> dput+0x93/0x140
[4294705.741000] <c0317d70> table_load+0x0/0x220 <c016e176> do_ioctl+0x76/0x80
[4294705.742000] <c016e1d2> vfs_ioctl+0x52/0x2c0 <c016e4c8> sys_ioctl+0x88/0xa0
[4294705.742000] <c0102bcb> sysenter_past_esp+0x54/0x75
[4294705.745000] XXX bd_claim 8:32/8:32 2@c0406572 2@c0406572
[4294705.745000] <c01628d6> bd_claim+0xa6/0x130 <c0163001> bd_claim_by_disk+0x91/0x1b0
[4294705.745000] <c0314615> open_dev+0x55/0xa0 <c03153fd> dm_get_device+0x19d/0x470
[4294705.745000] <c0233fd7> vsscanf+0x4b7/0x530 <c0315fcf> linear_ctr+0xaf/0x130
[4294705.746000] <c0314f4b> dm_table_add_target+0x17b/0x2f0 <c0317e6f> table_load+0xff/0x220
[4294705.746000] <c0317371> ctl_ioctl+0x1c1/0x2e0 <c0173b33> dput+0x93/0x140
[4294705.746000] <c0317d70> table_load+0x0/0x220 <c016e176> do_ioctl+0x76/0x80
[4294705.746000] <c016e1d2> vfs_ioctl+0x52/0x2c0 <c016e4c8> sys_ioctl+0x88/0xa0
[4294705.747000] <c0102bcb> sysenter_past_esp+0x54/0x75
[4294705.749000] XXX bd_claim 8:48/8:48 2@c0406572 2@c0406572
[4294705.749000] <c01628d6> bd_claim+0xa6/0x130 <c0163001> bd_claim_by_disk+0x91/0x1b0
[4294705.750000] <c0314615> open_dev+0x55/0xa0 <c03153fd> dm_get_device+0x19d/0x470
[4294705.750000] <c0233fd7> vsscanf+0x4b7/0x530 <c0315fcf> linear_ctr+0xaf/0x130
[4294705.750000] <c0314f4b> dm_table_add_target+0x17b/0x2f0 <c0317e6f> table_load+0xff/0x220
[4294705.751000] <c0317371> ctl_ioctl+0x1c1/0x2e0 <c0173b33> dput+0x93/0x140
[4294705.751000] <c0317d70> table_load+0x0/0x220 <c016e176> do_ioctl+0x76/0x80
[4294705.751000] <c016e1d2> vfs_ioctl+0x52/0x2c0 <c016e4c8> sys_ioctl+0x88/0xa0
[4294705.751000] <c0102bcb> sysenter_past_esp+0x54/0x75
[4294705.754000] XXX bd_claim 8:64/8:64 2@c0406572 2@c0406572
[4294705.754000] <c01628d6> bd_claim+0xa6/0x130 <c0163001> bd_claim_by_disk+0x91/0x1b0
[4294705.755000] <c0314615> open_dev+0x55/0xa0 <c03153fd> dm_get_device+0x19d/0x470
[4294705.755000] <c0233fd7> vsscanf+0x4b7/0x530 <c0315fcf> linear_ctr+0xaf/0x130
[4294705.755000] <c0314f4b> dm_table_add_target+0x17b/0x2f0 <c0317e6f> table_load+0xff/0x220
[4294705.755000] <c0317371> ctl_ioctl+0x1c1/0x2e0 <c0173b33> dput+0x93/0x140
[4294705.756000] <c0317d70> table_load+0x0/0x220 <c016e176> do_ioctl+0x76/0x80
[4294705.756000] <c016e1d2> vfs_ioctl+0x52/0x2c0 <c016e4c8> sys_ioctl+0x88/0xa0
[4294705.756000] <c0102bcb> sysenter_past_esp+0x54/0x75
Here, all the SCSI disks are claimed exclusively by dm.
<--snip-->
The exclusive refs held above are never released. Thus the kernel
correctly denies any other exclusive access to the devices. dm is
holding them all. I have never used dm so don't know much about it. It
seems that you'll have to make dm ignore those SCSI disks if you wanna
use them for any other purpose.
--
tejun
-
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
