On Tue, Feb 26, 2013 at 10:25 PM, Larry Finger <larry.fin...@lwfinger.net> wrote: > Hi, > > With v3.8-8693-gbf722a0 from the mainline repo, I get the following warning > because the pointer for tty is NULL: > > [ 34.956862] WARNING: at drivers/tty/tty_buffer.c:428 > flush_to_ldisc+0x1bb/0x1c0() > [ 34.956865] Hardware name: HP Pavilion dv2700 Notebook PC > [ 34.956867] tty is NULL > [ 34.956869] Modules linked in: arc4 b43 mac80211 cfg80211 > snd_hda_codec_conexant snd_hda_intel rfkill snd_hda_codec ipv6 snd_pcm > kvm_amd snd_seq kvm bcma rng_core snd_timer snd_seq_device ssb mmc_core snd > pcmcia sr_mod cdrom sg soundcore forcedeth pcmcia_core snd_page_alloc > i2c_nforce2 i2c_core k8temp hwmon ehci_pci battery ac serio_raw joydev video > wmi button autofs4 ext4 mbcache jbd2 crc16 ohci_hcd ehci_hcd usbcore > usb_common thermal processor scsi_dh_alua scsi_dh_hp_sw scsi_dh_rdac > scsi_dh_emc scsi_dh ata_generic pata_acpi pata_amd > [ 34.956936] Pid: 270, comm: kworker/1:1 Not tainted 3.8.0+ #92 > [ 34.956939] Call Trace: > [ 34.956944] [<ffffffff812acc00>] ? flush_to_ldisc+0x120/0x1c0 > [ 34.956951] [<ffffffff81040a4a>] warn_slowpath_common+0x7a/0xc0 > [ 34.956955] [<ffffffff81040b31>] warn_slowpath_fmt+0x41/0x50 > [ 34.956959] [<ffffffff812acc9b>] flush_to_ldisc+0x1bb/0x1c0 > [ 34.956964] [<ffffffff810640f1>] process_one_work+0x1f1/0x660 > [ 34.956968] [<ffffffff81064085>] ? process_one_work+0x185/0x660 > [ 34.956972] [<ffffffff81064900>] worker_thread+0x110/0x380 > [ 34.956978] [<ffffffff810a5b7d>] ? trace_hardirqs_on+0xd/0x10 > [ 34.956982] [<ffffffff810647f0>] ? rescuer_thread+0x250/0x250 > [ 34.956987] [<ffffffff81069e96>] kthread+0xd6/0xe0 > [ 34.956992] [<ffffffff81424c9b>] ? _raw_spin_unlock_irq+0x2b/0x50 > [ 34.956997] [<ffffffff81069dc0>] ? __init_kthread_worker+0x70/0x70 > [ 34.957002] [<ffffffff81425a7c>] ret_from_fork+0x7c/0xb0 > [ 34.957006] [<ffffffff81069dc0>] ? __init_kthread_worker+0x70/0x70 > [ 34.957009] ---[ end trace f467d4f2302660c1 ]--- > [ 35.585060] forcedeth 0000:00:0a.0: irq 42 for MSI/MSI-X > [ 35.585182] forcedeth 0000:00:0a.0 eth0: MSI enabled > [ 36.140711] ------------[ cut here ]------------ > > > I have not yet bisected this problem yet; however, I can if requested. Being > lazy, I hope that someone already has a patch, or can see the problem by > inspection. :)
FWIW, I see the same on an ARM embedded board ... Daniel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
