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authorMark Lord <lkml@rtr.ca>2007-03-06 01:42:03 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-03-06 09:30:24 -0800
commit0de1517e23c2e28d58a6344b97a120596ea200bb (patch)
tree13760d58a2b12f5849be7bb478167ecb99028f5c /include/asm-x86_64/tsc.h
parent166f60dde0f3793e67bd0d76952eaa46705bbaa9 (diff)
[PATCH] Fix 2.6.21 rfcomm lockups
Any attempt to open/use a bluetooth rfcomm device locks up scheduling completely on my machine. Interrupts (ping, alt-sysrq) seem to be alive, but nothing else. This was working fine in 2.6.20, broken now in 2.6.21-rc2-git* Reverting this change (below) fixes it: | author Marcel Holtmann <marcel@holtmann.org> | Sat, 17 Feb 2007 22:58:57 +0000 (23:58 +0100) | committer David S. Miller <davem@sunset.davemloft.net> | Mon, 26 Feb 2007 19:42:41 +0000 (11:42 -0800) | commit c1a3313698895d8ad4760f98642007bf236af2e8 | tree 337a876f727061362b6a169f8759849c105b8f7a tree | snapshot | parent f5ffd4620aba9e55656483ae1ef5c79ba81f5403 commit | diff | | [Bluetooth] Make use of device_move() for RFCOMM TTY devices | | In the case of bound RFCOMM TTY devices the parent is not available | before its usage. So when opening a RFCOMM TTY device, move it to | the corresponding ACL device as a child. When closing the device, | move it back to the virtual device tree. | Signed-off-by: Marcel Holtmann <marcel@holtmann.org> The simplest fix for this bug is to prevent sysfs_move_dir() from self-deadlocking when (old_parent == new_parent). This patch prevents total system lockup when using rfcomm devices. Signed-off-by: Mark Lord <mlord@pobox.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-x86_64/tsc.h')
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