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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 07:27:52 +0000 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 07:27:52 +0000 |
| commit | d0c85e36e4de67af628d54e9ab577cc3fad7796a (patch) | |
| tree | f8f784b0f04343b90516a338d6df81df3a85dfa2 /results/classifier/gemma3:12b/kernel/1696 | |
| parent | 7f4364274750eb8cb39a3e7493132fca1c01232e (diff) | |
| download | emulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz emulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip | |
add deepseek and gemma results
Diffstat (limited to 'results/classifier/gemma3:12b/kernel/1696')
| -rw-r--r-- | results/classifier/gemma3:12b/kernel/1696 | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/kernel/1696 b/results/classifier/gemma3:12b/kernel/1696 new file mode 100644 index 00000000..5085e946 --- /dev/null +++ b/results/classifier/gemma3:12b/kernel/1696 @@ -0,0 +1,40 @@ + +Linux kernel hangs rarely when booting on the latest qemu +Description of problem: +(Downstream bug: https://bugzilla.redhat.com/show_bug.cgi?id=2213346) + +In Fedora we have noticed that the latest Linux kernel (rarely) hangs when booting +on the latest qemu. It hangs after printing: + +``` +[ 0.070120] x86/cpu: User Mode Instruction Prevention (UMIP) activated +[ 0.070120] Last level iTLB entries: 4KB 512, 2MB 255, 4MB 127 +[ 0.070120] Last level dTLB entries: 4KB 512, 2MB 255, 4MB 127, 1GB 0 +[ 0.070120] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization +[ 0.070120] Spectre V2 : Mitigation: Retpolines +[ 0.070120] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch +[ 0.070120] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT +[ 0.070120] Spectre V2 : Enabling Speculation Barrier for firmware calls +[ 0.070120] RETBleed: Mitigation: untrained return thunk +[ 0.070120] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier +[ 0.070120] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl +[ 0.070120] Freeing SMP alternatives memory: 48K +``` + +The next line which would be printed (if it didn't hang) is: + +``` +[ 0.070794] smpboot: CPU0: AMD Ryzen 9 3900X 12-Core Processor (family: 0x17, model: 0x71, stepping: 0x0) +``` + +We've seen this hang on both AMD and Intel. It probably happens one in every 300 boots. +Steps to reproduce: +By far the easiest way to reproduce this is to just run guestfish in a loop: + +``` +$ while guestfish -a /dev/null -v run >& /tmp/log; do echo -n . ; done +``` +Additional information: +The full qemu command is rather long but you can find it in this log file: + +https://bugzilla-attachments.redhat.com/attachment.cgi?id=1969620 |