2.6.11-rc3-mm1 : mount UDF CDRW stuck in D state
From: Laurent Riffard (laurent.riffard_at_free.fr)
Date: 02/05/05
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Date: Sat, 05 Feb 2005 17:49:31 +0100 To: Kernel development list <linux-kernel@vger.kernel.org>
Hello,
This is kernel 2.6.11-rc3-mm1. I can't mount an UDF-formatted cdrw in packet-writing mode. Mount process gets stuck in D state.
Mounting and writing this media in packet-writing mode works fine with kernel 2.6.11-rc2-mm2.
Mounting and reading this media in normal mode (/dev/hdd on /vol/graveur type udf (ro,noexec,nosuid,nodev,noatime)) works fine with kernel 2.6.11-rc3-mm1 or older.
Note I did not try another media, this one seems good to me. The drive is a LITE-ON LTR-48125S.
below are :
- ps status
- sysreq-T output
- output of /proc/driver/pktcdvd/pktcdvd0
- cdrwtool info
----------------------------------------------------------------------------
laurent$ ps aux | grep mount
root 6782 0.0 0.1 1572 436 ? D 17:34 0:00 /bin/mount -t udf -s -o noatime /dev/pktcdvd/0 /vol/pkt
----------------------------------------------------------------------------
Here is the output of SysRq-T for this process :
mount D C7E81B60 0 6782 6781 (NOTLB)
c7e81b64 00000082 c0381ee4 c7e81b60 00000000 4c667c40 000f4258 c74c05a0
c74c06c4 c7e80000 c7e81bd0 c7e81b80 c7e81bb8 c0280b76 00000000 c74c05a0
c01133a4 00000000 00000000 c021ae65 c1345e30 ffffffff 00000001 c74c05a0
Call Trace:
[wait_for_completion+157/266] wait_for_completion+0x9d/0x10a
[<c0280b76>] wait_for_completion+0x9d/0x10a
[pg0+364799100/1070007296] pkt_generic_packet+0x108/0x134 [pktcdvd]
[<d5f7447c>] pkt_generic_packet+0x108/0x134 [pktcdvd]
[pg0+364804125/1070007296] pkt_get_disc_info+0x3d/0x77 [pktcdvd]
[<d5f7581d>] pkt_get_disc_info+0x3d/0x77 [pktcdvd]
[pg0+364804344/1070007296] pkt_get_last_written+0x15/0x93 [pktcdvd]
[<d5f758f8>] pkt_get_last_written+0x15/0x93 [pktcdvd]
[pg0+364806861/1070007296] pkt_open_dev+0x38/0x12b [pktcdvd]
[<d5f762cd>] pkt_open_dev+0x38/0x12b [pktcdvd]
[pg0+364807294/1070007296] pkt_open+0x61/0xa0 [pktcdvd]
[<d5f7647e>] pkt_open+0x61/0xa0 [pktcdvd]
[do_open+151/803] do_open+0x97/0x323
[<c0151d01>] do_open+0x97/0x323
[blkdev_get+108/119] blkdev_get+0x6c/0x77
[<c0151ff9>] blkdev_get+0x6c/0x77
[open_bdev_excl+55/112] open_bdev_excl+0x37/0x70
[<c01522ee>] open_bdev_excl+0x37/0x70
[get_sb_bdev+22/283] get_sb_bdev+0x16/0x11b
[<c0150e2a>] get_sb_bdev+0x16/0x11b
[pg0+364950912/1070007296] udf_get_sb+0x10/0x12 [udf]
[<d5f99580>] udf_get_sb+0x10/0x12 [udf]
[do_kern_mount+67/186] do_kern_mount+0x43/0xba
[<c015109a>] do_kern_mount+0x43/0xba
[do_new_mount+108/153] do_new_mount+0x6c/0x99
[<c016419d>] do_new_mount+0x6c/0x99
[do_mount+309/332] do_mount+0x135/0x14c
[<c0164827>] do_mount+0x135/0x14c
[sys_mount+106/166] sys_mount+0x6a/0xa6
[<c0164be8>] sys_mount+0x6a/0xa6
[sysenter_past_esp+82/117] sysenter_past_esp+0x52/0x75
[<c0102bf9>] sysenter_past_esp+0x52/0x75
----------------------------------------------------------------------------
laurent$ cat /proc/driver/pktcdvd/pktcdvd0
Writer pktcdvd0 mapped to hdd:
Settings:
packet size: 0kB
write type: Packet
packet type: Variable
link loss: 0
track mode: 0
block mode: Unknown
Statistics:
packets started: 0
packets ended: 0
written: 0kB
read gather: 0kB
read: 0kB
Misc:
reference count: 1
flags: 0x0
read speed: 0kB/s
write speed: 0kB/s
start offset: 0
mode page offset: 0
Queue state:
bios queued: 0
bios pending: 0
current sector: 0x0
state: i:0 ow:0 rw:0 ww:0 rec:0 fin:0
----------------------------------------------------------------------------
[root@antares root]# cdrwtool -i -d /dev/hdd
using device /dev/hdd
1388KB internal buffer
setting write speed to 12x
DISC INFO:
erasable : Yes
border = 3
Disc status = 2
number of first track = 1
number of sessions = 1
number of tracks = 1
status of last track = 1
uru = 0
did_v = 1
dbc_v = 0
disc type = 32
disc_id = 100374
lead_in = 255:255:255 (1166880)
lead_out = 255:255:255 (1166880)
OPC entries = 1
TRACK INFO:
Track 1
track_number = 1
session_number = 1
damage = 0
copy = 0
track_mode = 7
Rt = 1
blank = 0
packet = 1
fp = 1
data_mode = 2
lra_v = 0
nwa_v = 0
track_start = 0
next_writable = 0
last_recorded = 0
free_blocks = 0
packet_size = 32
track_size = 295264 (590528KB)
-- laurent
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- Previous message: Stefan Dösinger: "Re: [ACPI] Re: [RFC] Reliable video POSTing on resume"
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