Martin Schwidefsky wrote:
BTW: I still can't see any loop in the kernel, that could call
do_signal() multiple times without returning to user in between.
For my understanding: do I miss something? If so, where is the loop?
do_signal sets up a signal frame for the user. It returns from it
by an svc and then another signal could be pending. It's not really
a loop. For every signal frame you end up at least once in user space
because we avoid creating multiple signal frames on the user stack.
Yeah. That's what I saw.
Each time when the kernel is entered again and a signal is pending,
do_signal() will be called on return to user with regs->trap setup
freshly. So, I still believe the patch doesn't have *any* effect.
Regards
Bodo
blue skies,
Martin
Martin Schwidefsky
Linux for zSeries Development & Services
IBM Deutschland Entwicklung GmbH
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
