Re: [PATCH 2/2] kernel/trace: fix watchdog soft lockup

2018-11-28 Thread Steven Rostedt
On Wed, 28 Nov 2018 23:24:26 +0100 Arnd Bergmann wrote: > On Wed, Nov 28, 2018 at 3:09 PM Steven Rostedt wrote: > > > > On Wed, 28 Nov 2018 09:13:34 +0100 > > Anders Roxell wrote: > > > > > When building a allmodconfig kernel for arm64 and boot that in qemu, > > > CONFIG_FTRACE_STARTUP_TEST

Re: [PATCH 2/2] kernel/trace: fix watchdog soft lockup

2018-11-28 Thread Steven Rostedt
On Wed, 28 Nov 2018 23:24:26 +0100 Arnd Bergmann wrote: > On Wed, Nov 28, 2018 at 3:09 PM Steven Rostedt wrote: > > > > On Wed, 28 Nov 2018 09:13:34 +0100 > > Anders Roxell wrote: > > > > > When building a allmodconfig kernel for arm64 and boot that in qemu, > > > CONFIG_FTRACE_STARTUP_TEST

Re: [PATCH 2/2] kernel/trace: fix watchdog soft lockup

2018-11-28 Thread Arnd Bergmann
On Wed, Nov 28, 2018 at 3:09 PM Steven Rostedt wrote: > > On Wed, 28 Nov 2018 09:13:34 +0100 > Anders Roxell wrote: > > > When building a allmodconfig kernel for arm64 and boot that in qemu, > > CONFIG_FTRACE_STARTUP_TEST gets enabled and that takes time so the > > watchdog expires and prints

Re: [PATCH 2/2] kernel/trace: fix watchdog soft lockup

2018-11-28 Thread Arnd Bergmann
On Wed, Nov 28, 2018 at 3:09 PM Steven Rostedt wrote: > > On Wed, 28 Nov 2018 09:13:34 +0100 > Anders Roxell wrote: > > > When building a allmodconfig kernel for arm64 and boot that in qemu, > > CONFIG_FTRACE_STARTUP_TEST gets enabled and that takes time so the > > watchdog expires and prints

Re: [PATCH 2/2] kernel/trace: fix watchdog soft lockup

2018-11-28 Thread Steven Rostedt
On Wed, 28 Nov 2018 09:13:34 +0100 Anders Roxell wrote: > When building a allmodconfig kernel for arm64 and boot that in qemu, > CONFIG_FTRACE_STARTUP_TEST gets enabled and that takes time so the > watchdog expires and prints out a message like this: > 'watchdog: BUG: soft lockup - CPU#0 stuck

Re: [PATCH 2/2] kernel/trace: fix watchdog soft lockup

2018-11-28 Thread Steven Rostedt
On Wed, 28 Nov 2018 09:13:34 +0100 Anders Roxell wrote: > When building a allmodconfig kernel for arm64 and boot that in qemu, > CONFIG_FTRACE_STARTUP_TEST gets enabled and that takes time so the > watchdog expires and prints out a message like this: > 'watchdog: BUG: soft lockup - CPU#0 stuck

[PATCH 2/2] kernel/trace: fix watchdog soft lockup

2018-11-28 Thread Anders Roxell
When building a allmodconfig kernel for arm64 and boot that in qemu, CONFIG_FTRACE_STARTUP_TEST gets enabled and that takes time so the watchdog expires and prints out a message like this: 'watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1]' Each time the function ftrace_replace_code

[PATCH 2/2] kernel/trace: fix watchdog soft lockup

2018-11-28 Thread Anders Roxell
When building a allmodconfig kernel for arm64 and boot that in qemu, CONFIG_FTRACE_STARTUP_TEST gets enabled and that takes time so the watchdog expires and prints out a message like this: 'watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1]' Each time the function ftrace_replace_code