diff options
Diffstat (limited to 'results/classifier/118/unknown/1617929')
| -rw-r--r-- | results/classifier/118/unknown/1617929 | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/results/classifier/118/unknown/1617929 b/results/classifier/118/unknown/1617929 new file mode 100644 index 000000000..a5dfb6029 --- /dev/null +++ b/results/classifier/118/unknown/1617929 @@ -0,0 +1,116 @@ +hypervisor: 0.880 +mistranslation: 0.877 +user-level: 0.863 +risc-v: 0.862 +permissions: 0.859 +TCG: 0.854 +x86: 0.850 +graphic: 0.850 +peripherals: 0.847 +virtual: 0.844 +KVM: 0.841 +register: 0.840 +i386: 0.828 +arm: 0.828 +semantic: 0.824 +assembly: 0.823 +debug: 0.820 +performance: 0.817 +vnc: 0.811 +device: 0.809 +architecture: 0.809 +ppc: 0.804 +PID: 0.794 +VMM: 0.794 +files: 0.788 +socket: 0.755 +network: 0.701 +kernel: 0.700 +boot: 0.698 + +qemu hangs in pselect syscall + +I'm using git commit d75aa4372f0414c9960534026a562b0302fcff29 (v2.7.0-rc4) configured with; + --enable-linux-user \ + --disable-system \ + --disable-tools \ + --disable-guest-agent \ + --static --disable-linux-aio \ + --disable-fdt \ + --without-pixman \ + --disable-blobs \ +Stable version (v2.6.0) also have the same problem. + +In a chroot environment I ran below command-line to compile some things, different sources each time. + /usr/bin/qemu-arm -0 /usr/bin/edje_cc /usr/bin/edje_cc -id /home/abuild/rpmbuild/BUILD/org.tizen.browser-1.6.2/services/SimpleUI/images_mob/ -DBROWSER_RESOLUTION_720x1280=1 -DPROFILE_MOBILE=1 /home/abuild/rpmbuild/BUILD/org.tizen.browser-1.6.2/services/SimpleUI/edc/TextPopup_mob.edc /home/abuild/rpmbuild/BUILD/org.tizen.browser-1.6.2/build-tizen/services/SimpleUI/720x1280_TextPopup.edj + +Here is back trace with gdb; +#0 safe_syscall_end () at /usr/src/debug/qemu-2.6.94/linux-user/host/i386/safe-syscall.inc.S:78 +#1 0x60049370 in safe_pselect6 (nfds=10, readfds=0xffa31b5c, writefds=0xffa31bdc, exceptfds=0xffa31c5c, timeout=0x0, sig=0x0) + at /usr/src/debug/qemu-2.6.94/linux-user/syscall.c:855 +#2 0x6004b2fe in do_select (n=10, rfd_addr=1082122232, wfd_addr=1082122360, efd_addr=1082122488, target_tv_addr=0) + at /usr/src/debug/qemu-2.6.94/linux-user/syscall.c:1386 +#3 0x6005e5ba in do_syscall (cpu_env=0x640d0454, num=142, arg1=10, arg2=1082122232, arg3=1082122360, arg4=1082122488, arg5=0, arg6=1087473216, arg7=0, + arg8=0) at /usr/src/debug/qemu-2.6.94/linux-user/syscall.c:9690 +#4 0x60045def in cpu_loop (env=0x640d0454) at /usr/src/debug/qemu-2.6.94/linux-user/main.c:876 +#5 0x60047640 in main (argc=10, argv=0xffa33c84, envp=0xffa33cb0) at /usr/src/debug/qemu-2.6.94/linux-user/main.c:4817 + +Attached core file taken from gdb. To see the stack frame, you could try; +$ tar -xf reproduced_118_04.tar.bz2; gdb --core core.1823 qemu-arm + +And recent strace log for PID 1823(stucked one); +79965 [ 313s] 1823 :0x8e _newselect(10,[9,3,],[],[],NULL) +79966 [ 313s] ==>[pselect6(0xa)=] +79967 [ 313s] [pselect6=0x1]<== +79968 [ 313s] 1823 :0x8e _newselect(10,[9,],[],[],NULL) +79969 [ 313s] 1823 :0x8e => = 0x00000001 ([9,],[],[],NULL) +79970 [ 313s] 1823 :0xfc epoll_wait(3,1082121456,32,0,1082121456,3) +79971 [ 313s] 1823 :0xfc epoll_wait(3,1082121456,32,0,1082121456,3) +79972 [ 313s] 1823 :0xfc => = 0 +79973 [ 313s] 1823 :0x3 read(9,0x407fdeec,16) +79974 [ 313s] 1823 :0x3 read(9,0x407fdeec,16) +79975 [ 313s] 1823 :0x3 => = 8 +79976 [ 313s] 1823 :0x107 clock_gettime(1,1082122120,0,1082829144,1082827588,0) +79977 [ 313s] 1823 :0x107 clock_gettime(1,1082122120,0,1082829144,1082827588,0) +79978 [ 313s] 1823 :0x107 => = 0 +79979 [ 313s] 1823 :0x8e _newselect(10,[9,3,],[],[],NULL) +79980 [ 313s] ==>[pselect6(0xa)=] + +I'm using 64-bit Ubuntu with kernel release Linux 3.19.0-25-generic #26~14.04.1-Ubuntu. +Reproducibility is low. One occurrence out of 50+ trials. + + + +FYI, adding a build log with strace enabled. + +Can you provide sufficient instructions for me to reproduce this on my machine, please? + + +Second part of scratch.armv7l.0.tar.gz. + +Third part of scratch.armv7l.0.tar.gz. + +Dear Peter. + +Thank you for the update. +Please find the attached full chroot environment that I used(scratch.armv7l.0.tar.gz, split three parts). +You could try make build with below steps; + +$ sudo su +$ echo -1 > /proc/sys/fs/binfmt_misc/arm +$ echo ':arm:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfa\xff\xff\xff:/usr/bin/qemu-arm-static:' > /proc/sys/fs/binfmt_misc/register + +$ cat scratch.armv7l.0.tar.gz.a* > scratch.armv7l.0.tar.gz; sudo tar -zxf scratch.armv7l.0.tar.gz +$ cd scratch.armv7l.0 +$ chroot . + chroot> cd /home/abuild/rpmbuild/BUILD/org.tizen.browser-1.6.2/build-tizen/services/ + chroot> while :; do make clean; make -j32; done + +Reproducibility is ver low but it surely happened. + +Thanks. + + +I can't reproduce this with current git master, and I know we fixed a lot of race conditions in linux-user. So I'm going to close this bug -- if it's still a problem for you with new QEMU, please reopen, preferably with a repro case that's more frequent than 1-in-50-or-less. + + |