On Tue, May 19, 2015 at 11:02:36PM -0700, Guenter Roeck wrote: > On Tue, May 19, 2015 at 05:30:01PM +1000, Stephen Rothwell wrote: > > Hi all, > > > > Changes since 20150518: > > > > The akpm-current tree gained a conflict against Linus' tree. > > > > Non-merge commits (relative to Linus' tree): 4713 > > 4246 files changed, 207445 insertions(+), 103657 deletions(-) > > > > ---------------------------------------------------------------------------- > > > I get an arm qemu runtime failure with this kernel when testing > a vexpress configuration. Kernel log output is > > Freeing unused kernel memory: 264K (80618000 - 8065a000) > random: nonblocking pool is initialized > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 661 at kernel/time/timer.c:1098 del_timer_sync+0x4c/0x54() > ** 20 printk messages dropped ** [<80059184>] (handle_irq_event_percpu) from [<8005928c>] (handle_irq_event+0x44/0x64) > ** 127 printk messages dropped ** [<80059184>] (handle_irq_event_percpu) from [<8005928c>] (handle_irq_event+0x44/0x64) > ** 128 printk messages dropped ** [<8005928c>] (handle_irq_event) from [<8005becc>] (handle_fasteoi_irq+0xa8/0x180) > ** 127 printk messages dropped ** [<8005928c>] (handle_irq_event) from [<8005becc>] (handle_fasteoi_irq+0xa8/0x180) > ** 127 printk messages dropped ** [<8005928c>] (handle_irq_event) from [<8005becc>] (handle_fasteoi_irq+0xa8/0x180) > > and many more of those until the qemu session is aborted. The complete log > is at > http://server.roeck-us.net:8010/builders/qemu-arm-next/builds/165/steps/qemubuildcommand/logs/stdio > > In some of the bisect builds I also noticed lots of > > ** 167 printk messages dropped ** [<80055c00>] (call_console_drivers.constprop.25) from [<80057144>] (console_unlock+0x4c8/0x51c) > > --- > Bisect log: > > # bad: [47cb9006f5fc8568ff5f9359d8b05e8f5fc91f12] Add linux-next specific files for 20150519 > # good: [e26081808edadfd257c6c9d81014e3b25e9a6118] Linux 4.1-rc4 > git bisect start 'HEAD' 'v4.1-rc4' > # good: [6835509ff89e1da06d5c017c962aa00f06fd554a] Merge remote-tracking branch 'drm-panel/drm/panel/for-next' > git bisect good 6835509ff89e1da06d5c017c962aa00f06fd554a > # good: [689fbd5603000238443bf1d91277c36962374b27] Merge remote-tracking branch 'rcu/rcu/next' > git bisect good 689fbd5603000238443bf1d91277c36962374b27 > # bad: [dc5f097e91455245a9ddbff7e9cbb475fd89745c] Merge remote-tracking branch 'staging/staging-next' > git bisect bad dc5f097e91455245a9ddbff7e9cbb475fd89745c > # good: [a4f18b1c40875d199a1f7a77f08642d38c4e6b21] staging: comedi: ni_stc.h: tidy up RTSI_Trig_Direction_Register and bits > git bisect good a4f18b1c40875d199a1f7a77f08642d38c4e6b21 > # bad: [99bd60ce3d5dca9a87c615805947001b5b864102] Merge remote-tracking branch 'tty/tty-next' > git bisect bad 99bd60ce3d5dca9a87c615805947001b5b864102 > # bad: [77232f791e0605521a978cbe7f79a93df24df374] vt: Don't check KD_GRAPHICS when binding/unbinding > git bisect bad 77232f791e0605521a978cbe7f79a93df24df374 > # good: [b8dccc1b2e178c4d9702c30fadbadff0c093e3d7] tty: hvc_console.c: move assignment out of if () block > git bisect good b8dccc1b2e178c4d9702c30fadbadff0c093e3d7 > # good: [31ada047681834d0d6f04adfb305ff26b52d2823] serial: imx: Constify platform_device_id > git bisect good 31ada047681834d0d6f04adfb305ff26b52d2823 > # good: [853a699739fede12a5465be685f0f366276cb507] serial: tegra: handle race condition on uart rx side > git bisect good 853a699739fede12a5465be685f0f366276cb507 > # good: [bd63364caa8df38bad2b25b11b2a1b849475cce5] vt: add cursor blink interval escape sequence > git bisect good bd63364caa8df38bad2b25b11b2a1b849475cce5 > # bad: [03ac6b3499c8a0b1fbb5c33ad6234a9e860f2614] drivers/tty/nozomi.c: rename CONFIG_MAGIC > git bisect bad 03ac6b3499c8a0b1fbb5c33ad6234a9e860f2614 > # bad: [360ee94b47a80b0e986c9e890f1862d29edf2c45] TTY: msm_smd_tty: Remove unused driver > git bisect bad 360ee94b47a80b0e986c9e890f1862d29edf2c45 > # bad: [27a4c827c34ac4256a190cc9d24607f953c1c459] fbcon: use the cursor blink interval provided by vt > git bisect bad 27a4c827c34ac4256a190cc9d24607f953c1c459 > # first bad commit: [27a4c827c34ac4256a190cc9d24607f953c1c459] fbcon: use the cursor blink interval provided by vt > > This seems unlikely, and I don't immediately see what is wrong, but reverting > the bad commit fixes the problem. No, that's correct, I have a fix coming soon to resolve this issue. thanks, greg k-h -- 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
