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Diffstat (limited to 'gitlab/issues_text/target_missing/host_missing/accel_missing/1696')
| -rw-r--r-- | gitlab/issues_text/target_missing/host_missing/accel_missing/1696 | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/gitlab/issues_text/target_missing/host_missing/accel_missing/1696 b/gitlab/issues_text/target_missing/host_missing/accel_missing/1696 deleted file mode 100644 index e380fb973..000000000 --- a/gitlab/issues_text/target_missing/host_missing/accel_missing/1696 +++ /dev/null @@ -1,39 +0,0 @@ -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 |