Peter Hurley
61e86cc90a
tty: vt: Fix !TASK_RUNNING diagnostic warning from paste_selection()
Pasting text with gpm on a VC produced warning [1]. Reset task state
to TASK_RUNNING in the paste_selection() loop, if the loop did not
sleep.
[1]
WARNING: CPU: 6 PID: 1960 at /home/peter/src/kernels/mainline/kernel/sched/core.c:7286 __might_sleep+0x7f/0x90()
do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff8151805e>] paste_selection+0x9e/0x1a0
Modules linked in: btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c .....
CPU: 6 PID: 1960 Comm: gpm Not tainted 4.1.0-rc7+tty-xeon+debug #rc7+tty
Hardware name: Dell Inc. Precision WorkStation T5400 /0RW203, BIOS A11 04/30/2012
ffffffff81c9c0a0 ffff8802b0fd3ac8 ffffffff8185778a 0000000000000001
ffff8802b0fd3b18 ffff8802b0fd3b08 ffffffff8108039a ffffffff82ae8510
ffffffff81c9ce00 0000000000000015 0000000000000000 0000000000000000
Call Trace:
[<ffffffff8185778a>] dump_stack+0x4f/0x7b
[<ffffffff8108039a>] warn_slowpath_common+0x8a/0xc0
[<ffffffff81080416>] warn_slowpath_fmt+0x46/0x50
[<ffffffff810ddced>] ? __lock_acquire+0xe2d/0x13a0
[<ffffffff8151805e>] ? paste_selection+0x9e/0x1a0
[<ffffffff8151805e>] ? paste_selection+0x9e/0x1a0
[<ffffffff810ad4ff>] __might_sleep+0x7f/0x90
[<ffffffff8185f76a>] down_read+0x2a/0xa0
[<ffffffff810bb1d8>] ? sched_clock_cpu+0xb8/0xe0
[<ffffffff8150d1dc>] n_tty_receive_buf_common+0x4c/0xba0
[<ffffffff810dc875>] ? mark_held_locks+0x75/0xa0
[<ffffffff81861c95>] ? _raw_spin_unlock_irqrestore+0x65/0x80
[<ffffffff810b49a1>] ? get_parent_ip+0x11/0x50
[<ffffffff8150dd44>] n_tty_receive_buf2+0x14/0x20
[<ffffffff81518117>] paste_selection+0x157/0x1a0
[<ffffffff810b77b0>] ? wake_up_state+0x20/0x20
[<ffffffff815203f8>] tioclinux+0xb8/0x2c0
[<ffffffff81515bfe>] vt_ioctl+0xaee/0x11a0
[<ffffffff810baf75>] ? sched_clock_local+0x25/0x90
[<ffffffff810bbe11>] ? vtime_account_user+0x91/0xa0
[<ffffffff8150810c>] tty_ioctl+0x20c/0xe20
[<ffffffff810bbe11>] ? vtime_account_user+0x91/0xa0
[<ffffffff810b49a1>] ? get_parent_ip+0x11/0x50
[<ffffffff810b4a69>] ? preempt_count_sub+0x49/0x50
[<ffffffff811ab71c>] ? context_tracking_exit+0x5c/0x290
[<ffffffff811ab71c>] ? context_tracking_exit+0x5c/0x290
[<ffffffff81248b98>] do_vfs_ioctl+0x318/0x570
[<ffffffff810dca8d>] ? trace_hardirqs_on+0xd/0x10
[<ffffffff810dc9b5>] ? trace_hardirqs_on_caller+0x115/0x1e0
[<ffffffff81254acc>] ? __fget_light+0x6c/0xa0
[<ffffffff81248e71>] SyS_ioctl+0x81/0xa0
[<ffffffff81862832>] system_call_fastpath+0x16/0x7a
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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2015-07-23 18:08:29 -07:00 |
| .. |
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hvc
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xen: features and cleanups for 4.2-rc0
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2015-07-01 11:53:46 -07:00 |
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ipwireless
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
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2015-04-14 09:50:27 -07:00 |
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serial
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serial: core: Fix crashes while echoing when closing
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2015-07-23 18:08:28 -07:00 |
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vt
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tty: vt: Fix !TASK_RUNNING diagnostic warning from paste_selection()
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2015-07-23 18:08:29 -07:00 |
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amiserial.c
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tty: amiserial.c: move assignment out of if () block
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2015-05-10 19:04:16 +02:00 |
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bfin_jtag_comm.c
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TTY: bfin_jtag_comm: remove incorrect wait_until_sent operation
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2015-03-07 03:44:14 +01:00 |
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cyclades.c
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tty: remove buf parameter from tty_name()
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2015-05-06 22:26:57 +02:00 |
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ehv_bytechan.c
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tty: remove unused variable sprop
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2015-02-03 15:52:13 -08:00 |
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goldfish.c
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staging: goldfish: Fix pointer cast for 32 bits
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2015-05-31 11:40:14 +09:00 |
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isicom.c
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tty/isicom: fix big-endian compile warning
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2015-02-02 10:11:25 -08:00 |
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Kconfig
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ttyFDC: Implement KGDB IO operations.
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2015-03-31 12:04:13 +02:00 |
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Makefile
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TTY: Add MIPS EJTAG Fast Debug Channel TTY driver
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2015-03-31 12:04:12 +02:00 |
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metag_da.c
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tty/metag_da: Avoid module_init/module_exit in non-modular code
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2015-06-16 14:12:31 -04:00 |
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mips_ejtag_fdc.c
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ttyFDC: Fix to use native endian MMIO reads
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2015-05-26 16:46:52 +02:00 |
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moxa.c
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moxa.h
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mxser.c
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mxser.h
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n_gsm.c
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tty: Spelling s/reseved/reserved/
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2015-05-24 13:06:08 -07:00 |
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n_hdlc.c
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pty: Fix input race when closing
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2015-05-10 19:26:37 +02:00 |
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n_r3964.c
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n_tracerouter.c
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n_tracesink.c
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n_tracesink.h
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n_tty.c
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n_tty: signal and flush atomically
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2015-07-23 15:05:53 -07:00 |
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nozomi.c
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drivers/tty/nozomi.c: rename CONFIG_MAGIC
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2015-05-10 19:19:06 +02:00 |
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pty.c
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pty: Fix input race when closing
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2015-05-10 19:26:37 +02:00 |
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rocket.c
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TTY: fix misspelling of current function in string
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2015-01-09 14:38:15 -08:00 |
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rocket.h
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tty: rocket: fix comment of ROCKET_SPD_HI
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2015-05-24 12:49:16 -07:00 |
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rocket_int.h
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synclink.c
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tty: synclink.c: move assignment out of if () block
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2015-05-10 19:04:18 +02:00 |
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synclink_gt.c
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tty: synclink_gt.c: move assignment out of if () block
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2015-05-10 19:04:18 +02:00 |
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synclinkmp.c
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tty: synclinkmp.c: move assignment out of if () block
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2015-05-10 19:04:18 +02:00 |
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sysrq.c
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Minor merge needed, due to function move.
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2015-07-01 10:49:25 -07:00 |
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tty_audit.c
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tty_buffer.c
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Merge 4.1-rc4 into tty-next
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2015-05-18 14:08:58 -07:00 |
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tty_io.c
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tty: remove buf parameter from tty_name()
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2015-05-06 22:26:57 +02:00 |
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tty_ioctl.c
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tty: remove buf parameter from tty_name()
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2015-05-06 22:26:57 +02:00 |
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tty_ldisc.c
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tty: remove buf parameter from tty_name()
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2015-05-06 22:26:57 +02:00 |
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tty_ldsem.c
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tty: tty_ldsem.c: move assignment out of if () block
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2015-05-10 19:04:18 +02:00 |
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tty_mutex.c
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tty: Make lock subclasses available for other tty locks
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2015-02-02 10:11:27 -08:00 |
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tty_port.c
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tty: Deletion of unnecessary checks before two function calls
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2014-11-26 19:35:49 -08:00 |