[PATCH] Fix get ERESTARTSYS with m32 in x86_64 when debug by GDB

H. Peter Anvin hpa@zytor.com
Wed Apr 30 16:35:00 GMT 2014

On 04/30/2014 06:35 AM, Mark Kettenis wrote:
> If (and only if) the goal of that TS_COMPAT flag solely is to trigger
> the error code sign-extension in arch/x86/asm/syscall.h:syscall_get_error(),
> we could work around to problem in GDB by checking "orig_ax" to see if
> we're continuing an interrupted system call and sign extend the error
> code in the real "eax" register if we are.

Well... this "if and only if" clause is false, although it might work
specifically in this context.  I need to do a writeup about this... I
should try to do that today.


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