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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-06-30 12:24:58 +0000 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-06-30 12:27:06 +0000 |
| commit | 33606b41d35115f887ea688b1a16f2ff85bf2fe4 (patch) | |
| tree | 406b2c7b19a087ba437c68f3dbf0b589fa1d6150 /results/scraper/launchpad-without-comments/1861653 | |
| parent | adedf8771bc4de3113041ca21bd4d0d1c0014b6a (diff) | |
| download | emulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.tar.gz emulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.zip | |
add launchpad bug reports without comments
Diffstat (limited to 'results/scraper/launchpad-without-comments/1861653')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1861653 | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1861653 b/results/scraper/launchpad-without-comments/1861653 new file mode 100644 index 00000000..95df147f --- /dev/null +++ b/results/scraper/launchpad-without-comments/1861653 @@ -0,0 +1,36 @@ +CPU of qemu-system-aarch64 always stuck + +I started qemu with these arguments: + qemu-system-aarch64 -M virt-2.9 -cpu cortex-a72 -smp cores=8,threads=1,sockets=1 -m 2G -device nec-usb-xhci -device usb-kbd -device usb-tablet -pflash /sdcard/QEMU_EFI.img -pflash /sdcard/QEMU_VARS.img -device virtio-blk-device,drive=Ubuntu -drive if=none,id=Ubuntu,file=Ubuntu.vhd -nographic -net user -net nic,model=rtl8139 -kernel linux -initrd initrd.gz +The setup program of Ubuntu devel aarch64 ran normally.But after several hours,the CPUs emulated by qemu-system-aarch64 went wrong. +Here are the messages displayed on the tty +[15842.164745] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [ksoftirqd/0:9] [15930.163589] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [ksoftirqd/0:9] +[16110.163540] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [ksoftirqd/0:9] +[16290.162801] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [ksoftirqd/0:9] +[16470.163927] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [ksoftirqd/0:9] +[16650.163246] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [ksoftirqd/0:9] +[16830.163216] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [ksoftirqd/0:9] +[17010.164504] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [ksoftirqd/0:9] + +Then I tried CentOS 7.1908 aarch64 with almost the same arguments. +After several hours,it went wrong too. +[17480 . 201 1 58] rcu : (3 ticks this GP) idle=362/0/0x3 softirq=61631 /61 631 fqs=10077 +[17480 . 204889] (detected by 3 , t=24007 jiffies , g=218453 , q=5285) [1 7480 . 21 7986] Task dump for CPU 7 : +[17480.222379] swapper/7R running task 0 +0 0x0000002a [17480.229073] Call trace : +[1 7480.241518] switch t0+0x104/0x1 f8 +[17480.249839] Ox7fffffffffffffff +[17660.232314] rcu : INFO: rcu sched detected stalls on CPUs/ tasks : +[17660.233580] rcu : (3 ticks this GP) idle=362/0/0x3 softirq=61631 /61 631 fqs=17770 +[17660.235837] (detected by 3,t=42012 jiffies , g=218453 , q=7039) +[17660 . 237955] Task dump for CPU 7 : +[17660.238900] swapper/ 7 R running task 0 0 +[17660.242967] Call trace : +[17660.246192] switch t0+0x104/0x1 f8 +[17660.253215] Ox7fffffffffffffff + +Obviously qemu-system-aarch64 caused these bugs. + +qemu version: 4.x(I have tested version 4.0 & 4.1.0 & 4.2.0) +host architecture: aarch64(Qualcomm Snapdragon series) +host system:Ubuntu devel 20.04& Debian 10(I have tested on many devices) \ No newline at end of file |