Subject: Re: [BUG][linux-next][ppc] kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: __schedule+0x978/0xa80

From: Abdul Haleem <[email-masked]>
Date: Fri, 12 Oct 2018 16:01:44 +0530

On Fri, 2018-10-12 at 10:08 +0200, Christophe LEROY wrote:
> 
> Le 12/10/2018 à 09:48, Abdul Haleem a écrit :
> > On Fri, 2018-10-12 at 13:15 +0530, Abdul Haleem wrote:
> >> Greeting's
> >>
> >> Today's linux-next fails to boot on powerpc bare-metal with this error
> >>
> >> POWER8 performance monitor hardware support registered
> >> rcu: Hierarchical SRCU implementation.
> >> smp: Bringing up secondary CPUs ...
> >> Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: __schedule+0x978/0xa80
> >> CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.0-rc7-next-20181010-autotest-autotest #1
> >> Call Trace:
> >> [c000001fed5b3bf0] [c000000000a0ef3c] dump_stack+0xb0/0xf4 (unreliable)
> >> [c000001fed5b3c30] [c0000000000f9d68] panic+0x140/0x308
> >> [c000001fed5b3cc0] [c0000000000f9844] __stack_chk_fail+0x24/0x30
> >> [c000001fed5b3d20] [c000000000a2c3a8] __schedule+0x978/0xa80
> >> [c000001fed5b3e00] [c000000000a2c9b4] schedule_idle+0x34/0x60
> >> [c000001fed5b3e30] [c00000000013d344] do_idle+0x224/0x3d0
> >> [c000001fed5b3ec0] [c00000000013d6e0] cpu_startup_entry+0x30/0x50
> >> [c000001fed5b3ef0] [c000000000047f34] start_secondary+0x4d4/0x520
> >> [c000001fed5b3f90] [c00000000000b370] start_secondary_prolog+0x10/0x14
> >> Rebooting in 10 seconds..
> >>
> >> Machine: Power 8 bare-metal
> >> kernel version: 4.19.0-rc7-next-20181010
> >> gcc version: 4.8.5 20150623
> >> config attach
> > 
> > Attaching the kernel config file
> > 
> 
> # Linux/powerpc 4.11.0-rc4 Kernel Configuration
> 
> This is not the correct config file. Can you send the .config ?

CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_CC_HAS_STACKPROTECTOR_NONE=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y

ah yes, I have attached the correct config now.

-- 
Regard's

Abdul Haleem
IBM Linux Technology Centre