Subject : WARNING in tty_io.c Submitter : Shan Wei <shanwei@cn.fujitsu.com> Date : 2010-11-10 8:06 Message-ID : 4CDA5291.4010802@cn.fujitsu.com References : http://marc.info/?l=linux-kernel&m=128937645120159&w=2 This entry is being used for tracking a regression from 2.6.36. Please don't close it until the problem is fixed in the mainline.
On Friday, November 19, 2010, Shan Wei wrote: > Rafael J. Wysocki wrote, at 11/19/2010 07:42 AM: > > This message has been generated automatically as a part of a summary report > > of recent regressions. > > > > The following bug entry is on the current list of known regressions > > from 2.6.36. Please verify if it still should be listed and let the > tracking team > > know (either way). > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=23092 > > Subject : WARNING in tty_io.c > > Submitter : Shan Wei <shanwei@cn.fujitsu.com> > > Date : 2010-11-10 8:06 (9 days old) > > It's not appreared in 2.6.37-rc2+ with top commit 59365d13. > I don't know which patch/commit fix it.
I'm still seeing it: (vanilla kernel 6656b3fc8aba2eb7ca00c06c7fe4917938b0b652) [ 7.944842] EXT4-fs (sda2): re-mounted. Opts: data=ordered [ 7.966383] systemd-logger[351]: Got error on stream: No such process [ 8.366392] ------------[ cut here ]------------ [ 8.366513] WARNING: at drivers/tty/tty_io.c:1331 tty_open+0x567/0x570() [ 8.366623] Hardware name: 6464CTO [ 8.366787] Modules linked in: autofs4 pcmcia sdhci_pci uhci_hcd ehci_hcd sdhci video mmc_core backlight usbcore sr_mod cdrom yenta_sock et output dm_mod [ 8.368068] Pid: 126, comm: plymouthd Not tainted 2.6.37-rc2-00126-gde3bb36 #67 [ 8.368206] Call Trace: [ 8.368323] [<ffffffff8105511f>] warn_slowpath_common+0x7f/0xc0 [ 8.368435] [<ffffffff8105517a>] warn_slowpath_null+0x1a/0x20 [ 8.368547] [<ffffffff81338747>] tty_open+0x567/0x570 [ 8.368663] [<ffffffff8115cf53>] ? chrdev_open+0x63/0x320 [ 8.368779] [<ffffffff8115d120>] chrdev_open+0x230/0x320 [ 8.368892] [<ffffffff81155b3c>] __dentry_open+0x11c/0x4a0 [ 8.369006] [<ffffffff8115cef0>] ? chrdev_open+0x0/0x320 [ 8.369118] [<ffffffff81157389>] nameidata_to_filp+0x69/0x80 [ 8.369234] [<ffffffff811677e0>] do_last+0x480/0x750 [ 8.369349] [<ffffffff812abe28>] ? __raw_spin_lock_init+0x38/0x70 [ 8.369457] [<ffffffff81167c88>] do_filp_open+0x1d8/0x6a0 [ 8.369569] [<ffffffff8112ad2a>] ? might_fault+0x7a/0xd0 [ 8.369683] [<ffffffff814af159>] ? sub_preempt_count+0xa9/0xe0 [ 8.369797] [<ffffffff811752d1>] ? alloc_fd+0x1b1/0x210 [ 8.369911] [<ffffffff81157408>] do_sys_open+0x68/0x120 [ 8.370057] [<ffffffff814aa5f9>] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 8.370178] [<ffffffff811574e0>] sys_open+0x20/0x30 [ 8.370286] [<ffffffff8100325b>] system_call_fastpath+0x16/0x1b [ 8.370389] ---[ end trace 249b918486812eb7 ]--- [ 8.555058] udev[346]: starting version 164