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Bug
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Resolution: Done-Errata
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Undefined
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rhel-9.3.0
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None
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kernel-5.14.0-415.el9
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Yes
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Low
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ZStream, Regression
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sst_virtualization_hwe
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ssg_virtualization
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19
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23
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None
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False
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None
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Red Hat Enterprise Linux
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None
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Approved Blocker
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Pass
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None
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x86_64
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None
Run this command. You will need to adjust the path to the kernel:
/usr/libexec/qemu-kvm -no-user-config -nodefaults -display none \ -machine accel=kvm:tcg,graphics=off -cpu max,la57=off -m 1024 \ -no-reboot -kernel /boot/vmlinuz-5.14.0-349.el9.x86_64 \ -serial file:/dev/stdout \ -append 'panic=1 console=ttyS0 printk.time=1'
It will hang at:
[ 0.604230] Call Trace: [ 0.604235] <TASK> [ 0.604237] dump_stack_lvl+0x34/0x48 [ 0.604242] panic+0xea/0x2e4 [ 0.604246] mount_block_root+0x28c/0x29f [ 0.604251] prepare_namespace+0x13b/0x16a [ 0.604254] kernel_init_freeable+0x17d/0x1a2 [ 0.604257] ? __pfx_kernel_init+0x10/0x10 [ 0.604261] kernel_init+0x16/0x130 [ 0.604263] ret_from_fork+0x29/0x50 [ 0.604268] </TASK>
What's supposed to happen is the VM reboots (causing qemu to exit because of the -no-reboot option):
[ 2.668471] tsc: Refined TSC clocksource calibration: 2207.933 MHz [ 2.670026] Kernel Offset: 0x5800000 from 0xffffffff81000000 (relocation ran) [ 2.670891] Rebooting in 1 seconds..
Note this bug is somewhat random ...
- links to
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RHSA-2023:120102 kernel bug fix and enhancement update
- mentioned on