On Sat, May 10, 2008 at 10:41:40AM +0200, Bram Matthys (Syzop) wrote:
> I also saw this on my console (which does not react either btw), not sure
> when it appeared.. at or very short after/before the time setting:
> Stub registers -
> ~ 0 - 621a
> ~ 1 - 13
> ~ 2 - 621a
> ~ 3 - 6215
> ~ 4 - 8
> ~ 5 - bfae182c
> ~ 6 - 0
> ~ 7 - 7b
> ~ 8 - 7b
> ~ 9 - 0
> ~ 10 - 0
> ~ 11 - ffffffff
> ~ 12 - 1000be
> ~ 13 - 73
> ~ 14 - 200246
> ~ 15 - bfae1810
> ~ 16 - 7b
> wait_stub_done : failed to wait for SIGTRAP, pid = 26141, n = 26141, errno =
> 0, status = 0x1c7f
For this one, try this patch:
Index: linux-2.6.22/arch/um/os-Linux/skas/process.c
===================================================================
--- linux-2.6.22.orig/arch/um/os-Linux/skas/process.c 2008-04-14
10:44:33.000000000 -0400
+++ linux-2.6.22/arch/um/os-Linux/skas/process.c 2008-05-13
11:37:35.000000000 -0400
@@ -55,7 +55,7 @@ static int ptrace_dump_regs(int pid)
* Signals that are OK to receive in the stub - we'll just continue it.
* SIGWINCH will happen when UML is inside a detached screen.
*/
-#define STUB_SIG_MASK (1 << SIGVTALRM)
+#define STUB_SIG_MASK ((1 << SIGVTALRM) | (1 << SIGWINCH))
/* Signals that the stub will finish with - anything else is an error */
#define STUB_DONE_MASK (1 << SIGTRAP)
I doubt it will fix the time problem. I'm going to chase vincent's
problem on the assusmption that you're seeing the same thing. When I
figure that out, we'll see how true that is.
> The old 2.6.20.1 uml's react fine when setting time backwards, btw (well..
> within reasonable limits)
UML got its timekeeping redone as part of the tickless work and I'm
still shaking out bugs...
Jeff
--
Work email - jdike at linux dot intel dot com
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