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semantic: 0.976
graphic: 0.976
other: 0.975
assembly: 0.974
instruction: 0.970
device: 0.967
socket: 0.961
network: 0.960
mistranslation: 0.949
boot: 0.947
vnc: 0.943
KVM: 0.931
QEMU Version 1.4.0 - SLIRP hangs VM
(Note: problem is not present in version 1.3.0)
Stacktrace: please see attached gdb log file.
Steps to reproduce:
1. gdb -x debug-qemu.gdb testing/qemu-1.4.0/ppc64-softmmu/qemu-system-ppc64
Contents of debug-qemu.gdb:
run -L ./testing/qemu-1.4.0/pc-bios -name "[DEBUG] Software und System-Entwicklung IBM POWER7" -cpu POWER7_v2.3 -M pseries -m 1024 -rtc base=utc -nodefaults -vga std -monitor vc -serial vc -netdev type=user,id=mynet0,hostfwd=tcp:127.0.0.1:9011-10.0.2.11:22 -device virtio-net-pci,netdev=mynet0 -drive file=images/suse-ppc.img,if=virtio,index=0,media=disk,cache=unsafe -kernel images/iso/suseboot/vmlinux -append "root=/dev/mapper/system-root ro audit=0 selinux=0 apparmor=0" -initrd images/iso/suseboot/initrd.img -drive if=scsi,bus=0,unit=0,media=cdrom
2. build information
QEMU: ppc64 full emulation, version 1.4.0
Host OS: Windows XP
Guest OS: openSUSE 12.2 kernel 3.4.6-2.10-ppc64
PATH=/usr/i686-pc-mingw32/sys-root/mingw/bin:$PATH
PKG_CONFIG_LIBDIR=/usr/i686-pc-mingw32/sys-root/mingw/lib/pkgconfig
THREADS=4
export PKG_CONFIG_LIBDIR
sed -i 's/--static-libs/--static --libs/' configure
CC=i686-pc-mingw32-gcc ./configure \
--target-list=ppc64-softmmu \
--enable-debug \
--enable-sdl \
--static \
--enable-fdt && \
sed -i 's/ -Wl,--dynamicbase//g; s/-Wl,--nxcompat //g;' config-host.mak && \
make -j$THREADS && {
echo "renaming binw.exe to bin.exe..."
for i in `echo $TARGET_LIST | tr ',' ' '`; do
BINARCH=`echo $i | sed 's/-softmmu//'`
mv $i/qemu-system-${BINARCH}w.exe \
$i/qemu-system-$BINARCH.exe
done
}
3. From VM:
Command to hang VM: zypper dup
Last message before VM hang: Retrieving repository 'openSUSE-12.2-12.2-0' metadata -----------------------[|]
On Fri, Mar 22, 2013 at 05:51:14PM -0000, Kenneth Salerno wrote:
> Public bug reported:
>
> (Note: problem is not present in version 1.3.0)
Please run git-bisect(1) to identify the commit that introduced the bug.
Information about git-bisect(1):
http://git-scm.com/book/en/Git-Tools-Debugging-with-Git#Binary-Search
http://code-worrier.com/blog/git-bisect-basics/
https://www.kernel.org/pub/software/scm/git/docs/git-bisect.html
Stefan
Result of git bisect:
commit 837d1f978224f7e7b020c71ffb10b291952cc596
Merge: a6fc23e 2b35e93
Author: Blue Swirl <email address hidden>
Date: Sat Jan 12 12:46:57 2013 +0000
Merge branch 's390-reorg' of git://repo.or.cz/qemu/rth
* 's390-reorg' of git://repo.or.cz/qemu/rth: (149 commits)
target-s390: Claim maintainership
target-s390: Use noreturn for exception and load_psw
target-s390: Use TCG_CALL_NO_WG for misc helpers
target-s390: Use TCG_CALL_NO_WG for integer helpers
target-s390: Use TCG_CALL_NO_WG for floating-point helpers
target-s390: Use TCG_CALL_NO_WG for memory helpers
target-s390: Perform COMPARE AND SWAP inline
target-s390: Optimize get_address
target-s390: Optimize ADDC/SUBB
target-s390: Optimize ADDU/SUBU CC testing
target-s390: Tidy comparisons
target-s390: Optmize emitting discards
target-s390: Optimize XC
target-s390: Fix cpu_clone_regs
target-s390: Implement LOAD/SET FP AND SIGNAL
target-s390: Implement SET ROUNDING MODE
target-s390: Use uint64_to_float128
target-s390: Implement LCDFR
target-s390: Check insn operand specifications
target-s390: Implement CPSDR
...
There are 1,484 files affected by this commit - Is there a way I can narrow this down even further within this commit?
Also attaching "strace -f" output from guest during execution of "zypper dup" leading to hang, as well as corresponding qemu gdb log following hang.
The last lines of the strace are:
time(NULL) = 1364222018
stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
uname({sys="Linux", node="suse-ppc", ...}) = 0
write(3, "2013-03-25 10:33:38 <1> suse-ppc"..., 127) = 127
time(NULL) = 1364222018
stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
uname({sys="Linux", node="suse-ppc", ...}) = 0
write(3, "2013-03-25 10:33:38 <1> suse-ppc"..., 137) = 137
close(9) = 0
time(NULL) = 1364222018
stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
uname({sys="Linux", node="suse-ppc", ...}) = 0
write(3, "2013-03-25 10:33:38 <1> suse-ppc"..., 127) = 127
time(NULL) = 1364222018
stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
uname({sys="Linux", node="suse-ppc", ...}) = 0
write(3, "2013-03-25 10:33:38 <1> suse-ppc"..., 137 <------------ QEMU window becomes unresponsive
On Mon, Mar 25, 2013 at 08:57:46PM -0000, Kenneth Salerno wrote:
> Result of git bisect:
>
> commit 837d1f978224f7e7b020c71ffb10b291952cc596
> Merge: a6fc23e 2b35e93
> Author: Blue Swirl <email address hidden>
> Date: Sat Jan 12 12:46:57 2013 +0000
>
> Merge branch 's390-reorg' of git://repo.or.cz/qemu/rth
>
> * 's390-reorg' of git://repo.or.cz/qemu/rth: (149 commits)
> target-s390: Claim maintainership
> target-s390: Use noreturn for exception and load_psw
> target-s390: Use TCG_CALL_NO_WG for misc helpers
> target-s390: Use TCG_CALL_NO_WG for integer helpers
> target-s390: Use TCG_CALL_NO_WG for floating-point helpers
> target-s390: Use TCG_CALL_NO_WG for memory helpers
> target-s390: Perform COMPARE AND SWAP inline
> target-s390: Optimize get_address
> target-s390: Optimize ADDC/SUBB
> target-s390: Optimize ADDU/SUBU CC testing
> target-s390: Tidy comparisons
> target-s390: Optmize emitting discards
> target-s390: Optimize XC
> target-s390: Fix cpu_clone_regs
> target-s390: Implement LOAD/SET FP AND SIGNAL
> target-s390: Implement SET ROUNDING MODE
> target-s390: Use uint64_to_float128
> target-s390: Implement LCDFR
> target-s390: Check insn operand specifications
> target-s390: Implement CPSDR
> ...
>
>
> There are 1,484 files affected by this commit - Is there a way I can narrow this down even further within this commit?
Looks like git-bisect(1) got stuck on a merge - maybe it followed the
wrong parent commit.
Please manually check whether a6fc23e hangs:
$ cd qemu
$ git checkout a6fc23e
$ ...build and test hang...
If a6fc23e is indeed broken then you can start a new git bisect between
v1.3.0 (good) and a6fc23e (bad).
If a6fc23e is not broken then that really suggestes the 's390-reorg'
merge broke SLIRP, which is unlikely.
Hope this helps.
Regarding the QEMU backtrace, it shows SLIRP is waiting in a blocking
accept() call:
Thread 1 (Thread 416.0x228):
#0 0x7c90e514 in ntdll!KiFastSystemCallRet ()
from /cygdrive/c/WINDOWS/system32/ntdll.dll
#1 0x7c90df5a in ntdll!ZwWaitForSingleObject ()
from /cygdrive/c/WINDOWS/system32/ntdll.dll
#2 0x71a5402b in ?? () from /cygdrive/c/WINDOWS/system32/mswsock.dll
#3 0x71a6b858 in StartWsdpService ()
from /cygdrive/c/WINDOWS/system32/mswsock.dll
#4 0x71ac0e46 in WSAAccept () from /cygdrive/c/WINDOWS/system32/WS2_32.dll
#5 0x71ac1057 in accept () from /cygdrive/c/WINDOWS/system32/WS2_32.dll
#6 0x0057caff in tcp_connect (inso=0x1c07c68) at slirp/tcp_subr.c:423
#7 0x005763d0 in slirp_select_poll (readfds=0xa19a40 <rfds>,
writefds=0xa19b60 <wfds>, xfds=0xa19c80 <xfds>, select_error=0)
at slirp/slirp.c:485
#8 0x0053688b in main_loop_wait (nonblocking=0) at main-loop.c:419
#9 0x005a8333 in main_loop () at vl.c:2001
#10 0x005af134 in qemu_main (argc=34, argv=0x1c08048, envp=0x0) at vl.c:4326
#11 0x005a4d84 in SDL_main (argc=34, argv=0x1c08048) at vl.c:102
#12 0x0073a951 in console_main ()
#13 0x00000022 in ?? ()
#14 0x01c08048 in ?? ()
Since the main loop holds the global mutex the guest is unable to make
progress and appears to hang.
Stefan
Sorry for the confusion, I was impatient for the first bisect run to complete - this time I figured out how to automate the testing portion of the git bisect run script so I could walk away and let it run until full completion.
Here is the result:
acbb090b2400f627a801074c4e3e006c7501bb26 is the first bad commit
commit acbb090b2400f627a801074c4e3e006c7501bb26
Author: Andreas Färber <email address hidden>
Date: Wed Aug 15 14:15:41 2012 +0200
prep: Include devices for ppc64 as well
Allows running qemu-system-ppc64 -M prep for consistency.
Reported-by: Markus Armbruster <email address hidden>
Signed-off-by: Andreas Färber <email address hidden>
Acked-by: Hervé Poussineau <email address hidden>
:040000 040000 efe2ed40eeef1863d210ab089033fdb0ce1eaea5 05c5174a00f99176a57398b32c5af659b8b0096c M default-configs
bisect run success
Triaging old bug tickets... can you still reproduce this issue with the latest version of QEMU? Or could we close this ticket nowadays?
Hi, you can close this bug.
Ken
Sent from Yahoo Mail on Android
On Tue, Jan 2, 2018 at 11:19 AM, Thomas Huth<email address hidden> wrote: Triaging old bug tickets... can you still reproduce this issue with the
latest version of QEMU? Or could we close this ticket nowadays?
** Changed in: qemu
Status: New => Incomplete
--
You received this bug notification because you are subscribed to the bug
report.
https://bugs.launchpad.net/bugs/1158912
Title:
QEMU Version 1.4.0 - SLIRP hangs VM
Status in QEMU:
Incomplete
Bug description:
(Note: problem is not present in version 1.3.0)
Stacktrace: please see attached gdb log file.
Steps to reproduce:
1. gdb -x debug-qemu.gdb testing/qemu-1.4.0/ppc64-softmmu/qemu-system-
ppc64
Contents of debug-qemu.gdb:
run -L ./testing/qemu-1.4.0/pc-bios -name "[DEBUG] Software und
System-Entwicklung IBM POWER7" -cpu POWER7_v2.3 -M pseries -m 1024
-rtc base=utc -nodefaults -vga std -monitor vc -serial vc -netdev
type=user,id=mynet0,hostfwd=tcp:127.0.0.1:9011-10.0.2.11:22 -device
virtio-net-pci,netdev=mynet0 -drive file=images/suse-
ppc.img,if=virtio,index=0,media=disk,cache=unsafe -kernel
images/iso/suseboot/vmlinux -append "root=/dev/mapper/system-root ro
audit=0 selinux=0 apparmor=0" -initrd images/iso/suseboot/initrd.img
-drive if=scsi,bus=0,unit=0,media=cdrom
2. build information
QEMU: ppc64 full emulation, version 1.4.0
Host OS: Windows XP
Guest OS: openSUSE 12.2 kernel 3.4.6-2.10-ppc64
PATH=/usr/i686-pc-mingw32/sys-root/mingw/bin:$PATH
PKG_CONFIG_LIBDIR=/usr/i686-pc-mingw32/sys-root/mingw/lib/pkgconfig
THREADS=4
export PKG_CONFIG_LIBDIR
sed -i 's/--static-libs/--static --libs/' configure
CC=i686-pc-mingw32-gcc ./configure \
--target-list=ppc64-softmmu \
--enable-debug \
--enable-sdl \
--static \
--enable-fdt && \
sed -i 's/ -Wl,--dynamicbase//g; s/-Wl,--nxcompat //g;' config-host.mak && \
make -j$THREADS && {
echo "renaming binw.exe to bin.exe..."
for i in `echo $TARGET_LIST | tr ',' ' '`; do
BINARCH=`echo $i | sed 's/-softmmu//'`
mv $i/qemu-system-${BINARCH}w.exe \
$i/qemu-system-$BINARCH.exe
done
}
3. From VM:
Command to hang VM: zypper dup
Last message before VM hang: Retrieving repository 'openSUSE-12.2-12.2-0' metadata -----------------------[|]
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1158912/+subscriptions
|