https://bugzilla.kernel.org/show_bug.cgi?id=216190
Bug ID: 216190 Summary: 5.19-rc4 kernel + KASAN fails to boot at very early stage when CONFIG_SMP=y is selected (PowerMac G4 3,6) Product: Platform Specific/Hardware Version: 2.5 Kernel Version: 5.19-rc4 Hardware: PPC-32 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: PPC-32 Assignee: platform_ppc...@kernel-bugs.osdl.org Reporter: erhar...@mailbox.org CC: christophe.le...@csgroup.eu Regression: No Created attachment 301307 --> https://bugzilla.kernel.org/attachment.cgi?id=301307&action=edit kernel .config (5.19-rc4, outline KASAN, CONFIG_SMP=y, PowerMac G4 DP) Revisiting bug #215389 and bug #216041 I fiddled around with KASAN builds again and finally may have found a clue. Kernel 5.19-rc4 runs fine with outline KASAN as long as '# CONFIG_SMP is not set'. It runs perfetly well without any advanced options needed, also setting THREAD_SHIFT manually to 14 is not needed. As soon as I set CONFIG_SMP=y in the attached .config I get a non-working kernel. It boots but gets stuck very early on a white screen reading "done found display: /pci@f0000000/ATY,AlteracParent@10/ATY,Alterac_B@1, opening..." Interesting thing is that without SMP I also didn't get memory corruption as in bug #215389 nor stack overflows as in bug #216041 after hours of building so far. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.