Re: Stack check failure with qemu_x86
Vakul Garg <vakul.garg@...>
The stack check failure shows up with only stack sentinel enabled on qemu_x86 in my case.
From: Boie, Andrew P <andrew.p.boie@...>
Sent: Monday, December 11, 2017 10:37:38 PM
To: Vakul Garg; zephyr-users@...
Subject: RE: Stack check failure with qemu_x86
There's no need to enable the stack sentinel on this target.
qemu_x86, by default, has MMU-assisted stack overflow protection enabled.
Unless you can reproduce this only when the sentinel is enabled? In which case this is a very interesting situation, please let me know.
In GDB you can set a breakpoint on _SysFatalErrorHandler() to debug when issues happen, all fatal exceptions go through there.
From: zephyr-users-bounces@... [mailto:zephyr-users-bounces@...]
On Behalf Of Vakul Garg
I am running IPSP sample app using qemu_86 (on master branch).
I have enabled following to detect stack corruption.
This results in stack check error.
I tried attaching gdb, but the qemu itself terminates resulting on closure of debug connection
Can someone give me pointers how to debug the same?
***** Stack Check Fail! *****
Current thread ID = 0x004035a0
Faulting segment:address = 0x0008:0x00003f6f
eax: 0x5be0cd19, ebx: 0xa54ff53a, ecx: 0x6a09e667, edx: 0x3c6ef372
esi: 0x1f83d9ab, edi: 0x510e527f, ebp: 0x9b05688c, esp: 0x0041dff8
Terminate emulator due to fatal kernel error