On 11/29/2017 11:28 AM, Thomas Gleixner wrote:
On Wed, 29 Nov 2017, Jarkko Nikula wrote:
On 11/29/2017 09:09 AM, Ingo Molnar wrote:
Hm, that commit looks broken with irq-tracing enabled. Does the
patch below fix it?
No, it makes the machine not to boot at all :-(
Log below when I used my config (now attached). With x86_64_defconfig it
booted twice but didn't survive suspend/resume. However several other boot
attempts with x86_64_defconfig failed somewhat similarly. Not in the same
place but hanging anyway. With my own config it seems to always end up failing
in trace_hardirqs_off_caller.
Does it work when you disable all the tracing muck?
My config seems to work with Ingo's patch if I disable both
CONFIG_FTRACE and CONFIG_PROVE_LOCKING which disables the
CONFIG_TRACE_IRQS_FLAGS.
x86_64_defconfig with CONFIG_FTRACE disabled is still unstable.
Sometimes hangs during bootup and sometimes boots up to userspace.
--
Jarkko
