Messages in this thread | | | Date | Sun, 19 Oct 2008 07:26:23 -0400 (EDT) | From | Justin Piszcz <> | Subject | Kernel 2.6.26.5 -> 2.6.27.2 [USB REGRESSION] (USB -> D_STATE) |
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With kernel 2.6.27.2, any processes attempting to use USB hang and go into D-state, I have never had a problem like this before until 2.6.27.2 (I have not tried 2.6.27.1 or 2.6.27)
# lsusb -v <hangs>
open("/dev/bus/usb", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3 fstat64(3, {st_mode=S_IFDIR|0755, st_size=140, ...}) = 0 getdents(3, /* 7 entries */, 4096) = 112 getdents(3, /* 0 entries */, 4096) = 0 close(3) = 0 open("/dev/bus/usb/001", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3 fstat64(3, {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0 getdents(3, /* 4 entries */, 4096) = 64 open("/dev/bus/usb/001/004", O_RDWR) = 4 ioctl(4, USBDEVFS_CONNECTINFO
nut (for UPS) does not start.
nut 4078 0.0 0.0 1964 856 pts/8 D 07:09 0:00 /lib/nut/usbhid-ups -a belkin root 4170 0.0 0.0 2204 1072 pts/8 D+ 07:11 0:00 lsusb -v
Processes go directly to D-state with 2.6.27.2 for USB.
Booting back to 2.6.26.5 now to see if everything works again.
Back to 2.6.25.5, everything works fine:
# lsusb Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 004: ID 2040:7501 Hauppauge Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 002: ID 050d:1100 Belkin Components Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 002: ID 045e:0039 Microsoft Corp. IntelliMouse Optical Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Relevant configuration files and dmesg output:
http://home.comcast.net/~jpiszcz/2.6.25.5-usb-working.txt http://home.comcast.net/~jpiszcz/2.6.27.2-usb-broken.txt
http://home.comcast.net/~jpiszcz/linux-2.6.25.5-config http://home.comcast.net/~jpiszcz/linux-2.6.27.2-config
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