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Re: [Qemu-devel] [PULL 00/18] Record/replay core for 2.5-rc1


From: Pavel Dovgaluk
Subject: Re: [Qemu-devel] [PULL 00/18] Record/replay core for 2.5-rc1
Date: Fri, 6 Nov 2015 08:10:08 +0300

> From: Paolo Bonzini [mailto:address@hidden
> On 05/11/2015 15:00, Peter Maydell wrote:
> > On 5 November 2015 at 12:13, Paolo Bonzini <address@hidden> wrote:
> >> The following changes since commit 
> >> 6c5f30cad290c745f910481d0e890b3f4fad1f00:
> >>
> >>   Merge remote-tracking branch 
> >> 'remotes/juanquintela/tags/migration/20151104' into staging
> (2015-11-05 10:10:57 +0000)
> >>
> >> are available in the git repository at:
> >>
> >>
> >>   git://github.com/bonzini/qemu.git tags/for-upstream-replay
> >>
> >> for you to fetch changes up to 88dcb341cd6163a47346de83d4206591da6a9959:
> >>
> >>   replay: recording of the user input (2015-11-05 12:40:48 +0100)
> >>
> >> ----------------------------------------------------------------
> >> So here it is, let's see what happens.
> >
> > Hi. This got through most of the merge tests, but running linux-user
> > tests failed:

Thanks for the report!

> > /home/petmay01/linaro/qemu-for-merges/build/all-linux-static/i386-linux-user/qemu-i386
> > -L ./gnemul/qemu-i386 i386/ls -l dummyfile
> > qemu-i386: /home/petmay01/linaro/qemu-for-merges/translate-all.c:146:
> > tb_unlock: Assertion `have_tb_lock' failed.
> >
> > Seems to assert the first time we call tb_unlock(). Here's a backtrace:
> > Program received signal SIGABRT, Aborted.
> > 0x00000000601fa5d9 in raise ()
> > (gdb) bt
> > #0  0x00000000601fa5d9 in raise ()
> > #1  0x000000006019a608 in abort ()
> > #2  0x0000000060194584 in __assert_fail_base ()
> > #3  0x00000000601945de in __assert_fail ()
> > #4  0x0000000060003d5b in tb_unlock () at
> > /home/petmay01/linaro/qemu-for-merges/translate-all.c:146
> > #5  0x00000000600073fa in tb_find_slow (cpu=0x62605710, pc=4135504272,
> > cs_base=0, flags=4194483)
> >     at /home/petmay01/linaro/qemu-for-merges/cpu-exec.c:279
> > #6  0x0000000060007581 in tb_find_fast (cpu=0x62605710) at
> > /home/petmay01/linaro/qemu-for-merges/cpu-exec.c:316
> > #7  0x0000000060007868 in cpu_x86_exec (cpu=0x62605710) at
> > /home/petmay01/linaro/qemu-for-merges/cpu-exec.c:423
> > #8  0x00000000600372b6 in cpu_loop (env=0x6260d990) at
> > /home/petmay01/linaro/qemu-for-merges/linux-user/main.c:281
> > #9  0x0000000060039370 in main (argc=6, argv=0x7fffffffe438,
> > envp=0x7fffffffe470)
> >     at /home/petmay01/linaro/qemu-for-merges/linux-user/main.c:4666
> >
> > thanks
> > -- PMM
> >
> 
> Pavel, can you look at it?  I'll take care of squashing the change.

Here is the patch:

diff --git a/replay/replay-user.c b/replay/replay-user.c
index eeaa41d..7d4f9fb 100755
--- a/replay/replay-user.c
+++ b/replay/replay-user.c
@@ -18,7 +18,7 @@ bool replay_exception(void)
 
 bool replay_has_exception(void)
 {
-    return true;
+    return false;
 }
 
 bool replay_interrupt(void)
@@ -28,7 +28,7 @@ bool replay_interrupt(void)
 
 bool replay_has_interrupt(void)
 {
-    return true;
+    return false;
 }

Pavel Dovgalyuk




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