Comment 15 for bug 917962

Hey,

I have the same issue even with vanilla kernel. I tried to run a bisect log which I'm not exactly sure of:

git bisect start
# bad: [b8ed9e5b8c34dc9fb1882669e45b21e3d0194881] Linux 3.2.1
git bisect bad b8ed9e5b8c34dc9fb1882669e45b21e3d0194881
# good: [c3b92c8787367a8bb53d57d9789b558f1295cc96] Linux 3.1
git bisect good c3b92c8787367a8bb53d57d9789b558f1295cc96
# bad: [68d99b2c8efcb6ed3807a55569300c53b5f88be5] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
git bisect bad 68d99b2c8efcb6ed3807a55569300c53b5f88be5
# bad: [efb8d21b2c6db3497655cc6a033ae8a9883e4063] Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
git bisect bad efb8d21b2c6db3497655cc6a033ae8a9883e4063
# good: [094daf7db7c47861009899ce23f9177d761e20b0] Merge branch 'master' of git://git.infradead.org/users/linville/wireless-next into for-davem
git bisect good 094daf7db7c47861009899ce23f9177d761e20b0
# good: [1be025d3cb40cd295123af2c394f7229ef9b30ca] Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
git bisect good 1be025d3cb40cd295123af2c394f7229ef9b30ca
# good: [4e7e2a2008f5d8c49791c412849d5b0232d39bb3] Merge branch 'for-linus' of git://opensource.wolfsonmicro.com/regmap
git bisect good 4e7e2a2008f5d8c49791c412849d5b0232d39bb3
# good: [1442d1678ca7e53574fd403ba7bee6f4125d920c] Merge branch 'for-3.2' of git://linux-nfs.org/~bfields/linux
git bisect good 1442d1678ca7e53574fd403ba7bee6f4125d920c
# good: [3cb603284b3d256ae9ae9e65887cee8416bfef15] Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
git bisect good 3cb603284b3d256ae9ae9e65887cee8416bfef15
# good: [51808f051ede81865b7af351d6c230a1ac244a22] max3110: add sysrq support
git bisect good 51808f051ede81865b7af351d6c230a1ac244a22
# good: [f37ac5a144027cddfcf1dfab30eb7c2ba765f5ca] tty/n_gsm: fix a bug in gsm_dlci_data_output (adaption = 2 case)
git bisect good f37ac5a144027cddfcf1dfab30eb7c2ba765f5ca
# good: [1177c0efc04d032644895b8d757f55b433912596] TTY: pty, release tty in all ptmx_open fail paths
git bisect good 1177c0efc04d032644895b8d757f55b433912596
# good: [4cbf9f4864bd4fb2e64d555aacb93c24478e4e8d] tty/serial: atmel_serial: auto-enumerate ports
git bisect good 4cbf9f4864bd4fb2e64d555aacb93c24478e4e8d
# good: [a0340703981baa6cc1e9c7c768095a0a4e718daf] Revert "TTY: call tty_driver_lookup_tty unconditionally"
git bisect good a0340703981baa6cc1e9c7c768095a0a4e718daf
# good: [d208a3bf77f902283894f546b6b5383202cf7882] TTY: serial_core: Fix crash if DCD drop during suspend
git bisect good d208a3bf77f902283894f546b6b5383202cf7882

then it said that efb8d21b2c6db3497655cc6a033ae8a9883e4063 was the first bad commit (which puzzles me a little since it's a merge commit but looks pretty much unrelated.