Revision 0de1517e23c2e28d58a6344b97a120596ea200bb authored by Mark Lord on 06 March 2007, 09:42:03 UTC, committed by Linus Torvalds on 06 March 2007, 17:30:24 UTC
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>
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| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 5.0 KB |
| Makefile | -rw-r--r-- | 1017 bytes |
| allocpercpu.c | -rw-r--r-- | 3.7 KB |
| backing-dev.c | -rw-r--r-- | 1.7 KB |
| bootmem.c | -rw-r--r-- | 12.0 KB |
| bounce.c | -rw-r--r-- | 6.5 KB |
| fadvise.c | -rw-r--r-- | 2.6 KB |
| filemap.c | -rw-r--r-- | 62.6 KB |
| filemap.h | -rw-r--r-- | 2.8 KB |
| filemap_xip.c | -rw-r--r-- | 10.3 KB |
| fremap.c | -rw-r--r-- | 6.1 KB |
| highmem.c | -rw-r--r-- | 7.8 KB |
| hugetlb.c | -rw-r--r-- | 19.4 KB |
| internal.h | -rw-r--r-- | 1.0 KB |
| madvise.c | -rw-r--r-- | 8.6 KB |
| memory.c | -rw-r--r-- | 72.9 KB |
| memory_hotplug.c | -rw-r--r-- | 7.3 KB |
| mempolicy.c | -rw-r--r-- | 47.1 KB |
| mempool.c | -rw-r--r-- | 9.0 KB |
| migrate.c | -rw-r--r-- | 21.5 KB |
| mincore.c | -rw-r--r-- | 5.7 KB |
| mlock.c | -rw-r--r-- | 5.3 KB |
| mmap.c | -rw-r--r-- | 56.4 KB |
| mmzone.c | -rw-r--r-- | 750 bytes |
| mprotect.c | -rw-r--r-- | 7.5 KB |
| mremap.c | -rw-r--r-- | 10.7 KB |
| msync.c | -rw-r--r-- | 2.4 KB |
| nommu.c | -rw-r--r-- | 31.4 KB |
| oom_kill.c | -rw-r--r-- | 11.9 KB |
| page-writeback.c | -rw-r--r-- | 27.5 KB |
| page_alloc.c | -rw-r--r-- | 91.1 KB |
| page_io.c | -rw-r--r-- | 3.6 KB |
| pdflush.c | -rw-r--r-- | 6.3 KB |
| prio_tree.c | -rw-r--r-- | 6.3 KB |
| readahead.c | -rw-r--r-- | 16.9 KB |
| rmap.c | -rw-r--r-- | 24.9 KB |
| shmem.c | -rw-r--r-- | 63.2 KB |
| shmem_acl.c | -rw-r--r-- | 4.6 KB |
| slab.c | -rw-r--r-- | 115.5 KB |
| slob.c | -rw-r--r-- | 8.2 KB |
| sparse.c | -rw-r--r-- | 7.8 KB |
| swap.c | -rw-r--r-- | 12.4 KB |
| swap_state.c | -rw-r--r-- | 9.3 KB |
| swapfile.c | -rw-r--r-- | 44.0 KB |
| thrash.c | -rw-r--r-- | 2.1 KB |
| tiny-shmem.c | -rw-r--r-- | 3.2 KB |
| truncate.c | -rw-r--r-- | 12.3 KB |
| util.c | -rw-r--r-- | 1.7 KB |
| vmalloc.c | -rw-r--r-- | 17.3 KB |
| vmscan.c | -rw-r--r-- | 47.2 KB |
| vmstat.c | -rw-r--r-- | 14.8 KB |
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