On Thu, Sep 13, 2012 at 8:04 AM, Minchan Kim <minchan@xxxxxxxxxx> wrote: > On Thu, Sep 13, 2012 at 07:29:32AM +0200, Sedat Dilek wrote: >> On Thu, Sep 13, 2012 at 5:18 AM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: >> > On Wed, Sep 12, 2012 at 10:46 AM, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote: >> >> Hi all, >> >> >> >> Changes since 201209011: >> >> >> >> The pci tree lost its build failure. >> >> >> >> The mfd tree gained a conflict against Linus' tree. >> >> >> >> The omap_dss2 tree lost its conflict. >> >> >> >> The trivial tree gained a conflict against the mfd tree. >> >> >> >> The kvm tree gained a conflict against Linus' tree. >> >> >> >> The workqueues tree gained a conflict against the omap_dss2 tree. >> >> >> >> The usb tree gained conflicts against the usb.current tree. >> >> >> >> The staging tree gained a conflict against the thermal tree and a build >> >> failure for which I applied a merge fix patch. >> >> >> >> The tegra tree gained conflicts against the usb and arm-perf trees. >> >> >> >> ---------------------------------------------------------------------------- >> >> >> > >> > Hi, >> > >> > this weeks linux-next seems to bring new and new issues, yay :-)! >> > >> > I have taken a photo, but can't say what can have caused. >> > The issue is reproducible... >> > Immediately, after pressing any key (when X-display-manager (lightdm) >> > and X-greeter are up) my machine panics and is no more usable (cold >> > rough brutal killer restart). >> > Note: Using upstart or systemd does not matter. >> > >> > Any pointer to an area where to dig into or any feedback in general is welcome! >> > >> > Kind Regards, >> > - Sedat - >> >> [ CC Dmitry Torokhov (linux-input maintainer) plus linux-input ML ] >> >> By looking at my screenshot, someone could imagine that there is a >> problem coming from the input GIT branch(es) merges: >> >> input_to_handler() >> input_pass_values() >> input_handle_event() >> input_event() >> >> Unfortunately, with those 3 revert-patches I see the same kernel-panic. >> >> Dimitry, any idea what can cause this kernel-panic? > > Today, I met similar problem in mmotm-2012-09-12-17-36 on my KVM. > It's hard to reproduce in my mahcine but I confirmed following as > Hoping it helps you. > [ CC more input developers/testers ] Hi Minchan, Hey, cool. Thanks for the pointer in the source-code and the call-trace! I had reverted [1], but anyway input folks should look at this. Kind Regards, - Sedat - [1] http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git;a=commitdiff;h=b276fc1e875a51e4a9dc3322ed008bf4ae481baf > static unsigned int input_to_handler(struct input_handle *handle, > struct input_value *vals, unsigned int count) > { > ... > ... > if (handler->events) > handler->events(handle, vals, count); > else > for (v = vals; v != end; v++) > handler->event(...); <-- handler->event is *ZERO*. > > return count; > } > > > [ 34.667212] BUG: unable to handle kernel NULL pointer dereference at (null) > [ 34.668320] IP: [< (null)>] (null) > [ 34.669095] PGD 1fe47c067 PUD 1fe47b067 PMD 0 > [ 34.669808] Oops: 0010 [#1] SMP > [ 34.670316] Modules linked in: i2c_piix4 > [ 34.670618] CPU 6 > [ 34.670618] Pid: 0, comm: swapper/6 Not tainted 3.6.0-rc5-mm1-alloc-enhance+ #60 Bochs Bochs[ 34.670618] RIP: 0010:[<0000000000000000>] [< (null)>] (null) > [ 34.670618] RSP: 0018:ffff88021fd83c20 EFLAGS: 00010082 > [ 34.670618] RAX: 0000000000000010 RBX: 0000000000000002 RCX: 000000000000000f > [ 34.670618] RDX: 0000000000000004 RSI: 0000000000000004 RDI: ffff8802145b4c00 > [ 34.670618] RBP: ffff88021fd83c68 R08: 0000000000000000 R09: 0000000000000000 > [ 34.670618] R10: 0000000000000000 R11: 0000000000000001 R12: ffff880215c21070 > [ 34.670618] R13: ffff880215c21068 R14: ffffffff81a8bfe0 R15: ffff8802145b4c00 > [ 34.670618] FS: 0000000000000000(0000) GS:ffff88021fd80000(0000) knlGS:0000000000000000 > [ 34.670618] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 34.670618] CR2: 0000000000000000 CR3: 00000001fe46f000 CR4: 00000000000006e0 > [ 34.670618] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 34.670618] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [ 34.670618] Process swapper/6 (pid: 0, threadinfo ffff88021611e000, task ffff880216128000) > [ 34.670618] Stack: > [ 34.670618] ffffffff81480a5d 0000000000000000 ffff880215c21060 0000000000000000 > [ 34.670618] ffff880215c21060 0000000000000002 ffff8802161ca800 ffff8802145b4c00 > [ 34.670618] ffff8802161cadb0 ffff88021fd83cc8 ffffffff81482caf ffffffff81482b28 > [ 34.670618] Call Trace: > [ 34.670618] <IRQ> > [ 34.670618] [<ffffffff81480a5d>] ? input_to_handler+0xdd/0xf0 > [ 34.670618] [<ffffffff81482caf>] input_pass_values+0x1cf/0x1e0 > [ 34.670618] [<ffffffff81482b28>] ? input_pass_values+0x48/0x1e0 > [ 34.670618] [<ffffffff8148320e>] input_handle_event+0xce/0x540 > [ 34.670618] [<ffffffff8148380c>] input_event+0x6c/0x80 > [ 34.670618] [<ffffffff8148acf6>] atkbd_interrupt+0x4f6/0x660 > [ 34.670618] [<ffffffff812e6b94>] ? do_raw_spin_lock+0x54/0x120 > [ 34.670618] [<ffffffff8147dd52>] serio_interrupt+0x52/0xa0 > [ 34.670618] [<ffffffff8147ece3>] i8042_interrupt+0x193/0x3b0 > [ 34.670618] [<ffffffff810e4de5>] handle_irq_event_percpu+0x75/0x270 > [ 34.670618] [<ffffffff812e6cfd>] ? do_raw_spin_unlock+0x5d/0xb0 > [ 34.670618] [<ffffffff810e5028>] handle_irq_event+0x48/0x70 > [ 34.670618] [<ffffffff810e79d7>] handle_edge_irq+0x77/0x110 > [ 34.670618] [<ffffffff81016192>] handle_irq+0x22/0x40 > [ 34.670618] [<ffffffff81591c3a>] do_IRQ+0x5a/0xe0 > [ 34.670618] [<ffffffff8158786f>] common_interrupt+0x6f/0x6f > [ 34.670618] <EOI> > [ 34.670618] [<ffffffff810422e6>] ? native_safe_halt+0x6/0x10 > [ 34.670618] [<ffffffff810b027d>] ? trace_hardirqs_on+0xd/0x10 > [ 34.670618] [<ffffffff8101c5d8>] default_idle+0x58/0x270 > [ 34.670618] [<ffffffff8101d669>] cpu_idle+0xe9/0x130 > [ 34.670618] [<ffffffff815734fc>] start_secondary+0x200/0x207 > [ 34.670618] Code: Bad RIP value. > [ 34.670618] RIP [< (null)>] (null) > [ 34.670618] RSP <ffff88021fd83c20> > [ 34.670618] CR2: 0000000000000000 > [ 34.670618] ---[ end trace 11a3b8aa65519925 ]--- > [ 34.670618] Kernel panic - not syncing: Fatal exception in interrupt > > -- > Kind regards, > Minchan Kim -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
