Subject: [Bug 216715] New: kernel 6.1-rc5 + KASAN_OUTLINE fails to boot at very early stage when DEBUG_PAGEALLOC_ENABLE_DEFAULT is enabled (PowerMac G4 3,6)

From: [email-masked]
Date: Mon, 21 Nov 2022 00:19:04 +0000

https://bugzilla.kernel.org/show_bug.cgi?id=216715

            Bug ID: 216715
           Summary: kernel 6.1-rc5 + KASAN_OUTLINE fails to boot at very
                    early stage when DEBUG_PAGEALLOC_ENABLE_DEFAULT is
                    enabled (PowerMac G4 3,6)
           Product: Platform Specific/Hardware
           Version: 2.5
    Kernel Version: 6.1-rc5
          Hardware: PPC-32
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: PPC-32
          Assignee: [email-masked]
          Reporter: [email-masked]
                CC: [email-masked]
        Regression: No

Created attachment 303245
  --> https://bugzilla.kernel.org/attachment.cgi?id=303245&action=edit
kernel .config (6.1-rc5, PowerMac G4 DP)

Kernel 6.1-rc5 fails to boot on my PowerMac G4 3,6 at a very early stage
(OpenFirmware console, white background) when built with CONFIG_KASAN_OUTLINE=y
and CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT=y.

Same kernel .config without CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT just boots
fine, even when Outline KASAN is enabled and CONFIG_DEBUG_PAGEALLOC=y is set.
Only CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT seems to provoke the issue.

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