linux-kernel - Re: [PATCH] arm64/mm: Drop redundant BUG_ON(!pgtable

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Date:   Mon, 21 Nov 2022 21:17:18 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     open list <linux-kernel@...r.kernel.org>,
        lkft-triage@...ts.linaro.org, regressions@...ts.linux.dev
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Nathan Chancellor <nathan@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        Anders Roxell <anders.roxell@...aro.org>
Subject: Re: [PATCH] arm64/mm: Drop redundant BUG_ON(!pgtable_alloc)

LKFT detected arm64 boot regression on today's Linux next-20221121 tag.
The Kernel boot log did not show anything on the serial console.

Anders bisected this problem and found the subject commit is the
first bad commit.

# first bad commit: [9ed2b4616d4e846ece2a04cb5007ce1d1bd9e3f3]
        arm64/mm: Drop redundant BUG_ON(!pgtable_alloc)

Later it was found this lore link which was already reported [1].

ref:
[1] https://lore.kernel.org/all/Y3pS5fdZ3MdLZ00t@dev-arch.thelio-3990X/


--
Linaro LKFT
https://lkft.linaro.org