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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
| commit | dee4dcba78baf712cab403d47d9db319ab7f95d6 (patch) | |
| tree | 418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/118/unknown/1862874 | |
| parent | 4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff) | |
| download | emulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz emulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip | |
restructure results
Diffstat (limited to 'results/classifier/118/unknown/1862874')
| -rw-r--r-- | results/classifier/118/unknown/1862874 | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/results/classifier/118/unknown/1862874 b/results/classifier/118/unknown/1862874 deleted file mode 100644 index 91b0f560..00000000 --- a/results/classifier/118/unknown/1862874 +++ /dev/null @@ -1,135 +0,0 @@ -KVM: 0.877 -virtual: 0.849 -register: 0.839 -performance: 0.836 -user-level: 0.812 -permissions: 0.804 -debug: 0.803 -mistranslation: 0.802 -graphic: 0.801 -risc-v: 0.800 -x86: 0.797 -TCG: 0.795 -device: 0.785 -VMM: 0.778 -architecture: 0.777 -vnc: 0.774 -ppc: 0.771 -boot: 0.763 -hypervisor: 0.763 -assembly: 0.751 -semantic: 0.750 -peripherals: 0.747 -network: 0.744 -arm: 0.741 -socket: 0.730 -i386: 0.712 -kernel: 0.711 -files: 0.704 -PID: 0.680 - -java may stuck for a long time in system mode with "-cpu max" - -Bug Description: -Run "java -version" in guest VM, java may stuck for a long time (several hours) and then recover. - -Steps to reproduce: -1. Launch VM by attached simple script: launch.sh -2. Execute "java -version" and then print "date" in a loop - while : - do - /home/bot/jdk/bin/java -version - date - done -3. A long time gap will be observed: may > 24 hours. - -Technical details: -* host: x86_64 Linux 4.15.0-70-generic -* qemu v4.2.0 -* java: tried two versions: openjdk-11-jre-headless or compiled java-13 -* command-line: (See details in launch.sh) -/home/bot/qemu/qemu-build/qemu-4.2.0/binaries/bin/qemu-system-x86_64 \ - -drive "file=${img},format=qcow2" \ - -drive "file=${user_data},format=raw" \ - -cpu max \ - -m 24G \ - -serial mon:stdio \ - -smp 8 \ - -nographic \ -; - -* Observed by java core dump generated by "kill -SIGSEGV" when java stucked: -Different pthreads are blocked on their own condition variables: - - Id Target Id Frame - 1 Thread 0x7f48a041a080 (LWP 22470) __GI_raise (sig=sig@entry=6) - at ../sysdeps/unix/sysv/linux/raise.c:51 - 2 Thread 0x7f487197d700 (LWP 22473) 0x00007f489f5c49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f48980197c0) - at ../sysdeps/unix/sysv/linux/futex-internal.h:88 - 3 Thread 0x7f4861b89700 (LWP 22483) 0x00007f489f5c4ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f4861b88960, expected=0, - futex_word=0x7f489801b084) - at ../sysdeps/unix/sysv/linux/futex-internal.h:142 - 4 Thread 0x7f4861e8c700 (LWP 22480) 0x00007f489f5c76d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x7f48980107c0) - at ../sysdeps/unix/sysv/linux/futex-internal.h:205 - 5 Thread 0x7f4861c8a700 (LWP 22482) 0x00007f489f5c4ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f4861c89800, expected=0, - futex_word=0x7f489801ed44) - at ../sysdeps/unix/sysv/linux/futex-internal.h:142 - 6 Thread 0x7f48a0418700 (LWP 22471) 0x00007f4880b13200 in ?? () - 7 Thread 0x7f48703ea700 (LWP 22478) 0x00007f489f5c49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f489801dfc0) - at ../sysdeps/unix/sysv/linux/futex-internal.h:88 - 8 Thread 0x7f48702e9700 (LWP 22479) 0x00007f489f5c49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f489838cd84) - at ../sysdeps/unix/sysv/linux/futex-internal.h:88 - 9 Thread 0x7f4870f71700 (LWP 22475) 0x00007f489f5c49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f489801a300) - at ../sysdeps/unix/sysv/linux/futex-internal.h:88 - 10 Thread 0x7f487187b700 (LWP 22474) 0x00007f489f5c76d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x7f48980cf770) - at ../sysdeps/unix/sysv/linux/futex-internal.h:205 - 11 Thread 0x7f4871a7f700 (LWP 22472) 0x00007f489f5c76d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x7f489809ba30) - at ../sysdeps/unix/sysv/linux/futex-internal.h:205 - 12 Thread 0x7f4861d8b700 (LWP 22481) 0x00007f489f5c4ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f4861d8a680, expected=0, - futex_word=0x7f489801ed44) - at ../sysdeps/unix/sysv/linux/futex-internal.h:142 - 13 Thread 0x7f48704ec700 (LWP 22477) 0x00007f489f5c4ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f48704eb910, expected=0, - futex_word=0x7f489801d120) - at ../sysdeps/unix/sysv/linux/futex-internal.h:142 - 14 Thread 0x7f4870e6f700 (LWP 22476) 0x00007f489f5c4ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f4870e6eb20, expected=0, - futex_word=0x7f489828abd0) - at ../sysdeps/unix/sysv/linux/futex-internal.h:142 - - - -Have you tried with KVM ("-M accel=kvm")? - -Please try "strace -o /var/tmp/java.log -f java -version" and upload the strace. If the strace is very large, it's probably safe to remove everything after around 10 seconds. - -The QEMU project is currently moving its bug tracking to another system. -For this we need to know which bugs are still valid and which could be -closed already. Thus we are setting the bug state to "Incomplete" now. - -If the bug has already been fixed in the latest upstream version of QEMU, -then please close this ticket as "Fix released". - -If it is not fixed yet and you think that this bug report here is still -valid, then you have two options: - -1) If you already have an account on gitlab.com, please open a new ticket -for this problem in our new tracker here: - - https://gitlab.com/qemu-project/qemu/-/issues - -and then close this ticket here on Launchpad (or let it expire auto- -matically after 60 days). Please mention the URL of this bug ticket on -Launchpad in the new ticket on GitLab. - -2) If you don't have an account on gitlab.com and don't intend to get -one, but still would like to keep this ticket opened, then please switch -the state back to "New" or "Confirmed" within the next 60 days (other- -wise it will get closed as "Expired"). We will then eventually migrate -the ticket automatically to the new system (but you won't be the reporter -of the bug in the new system and thus you won't get notified on changes -anymore). - -Thank you and sorry for the inconvenience. - - -[Expired for QEMU because there has been no activity for 60 days.] - |
