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Groups > linux.kernel > #1586926
| From | Will Deacon <will.deacon@arm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] arm64: Fix the kernel panic() on QDF2400 platform |
| Date | 2017-02-23 15:50 +0100 |
| Message-ID | <te2Su-2AJ-15@gated-at.bofh.it> (permalink) |
| References | <tdSgp-3Ew-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Feb 22, 2017 at 09:10:48PM -0600, Shanker Donthineni wrote: > The commit 38fd94b0 'arm64: Work around Falkor erratum 1003' has > been added to fix the hardware bug but causing a system crash. > The value of the register x1 which contains 'struct mm_struct *' > should be preserved inside macro pre_ttbr0_update_workaround. > > Macro pre_ttbr0_update_workaround expects 2nd and 3rd arguments > are temporary registers. Don't clobber register x1, Otherwise > the next load operation 'mmid x1 x1' access the invalid address. Whilst I'm pleased that you've sent a fix (and I'll pick it up), I have to ask... did anybody actually test the original patch? If so, why wasn't this found earlier? Will
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[PATCH] arm64: Fix the kernel panic() on QDF2400 platform Shanker Donthineni <shankerd@codeaurora.org> - 2017-02-23 04:30 +0100
Re: [PATCH] arm64: Fix the kernel panic() on QDF2400 platform Will Deacon <will.deacon@arm.com> - 2017-02-23 15:50 +0100
Re: [PATCH] arm64: Fix the kernel panic() on QDF2400 platform Timur Tabi <timur@codeaurora.org> - 2017-02-23 20:30 +0100
Re: arm64: Fix the kernel panic() on QDF2400 platform Manoj Iyer <manoj.iyer@canonical.com> - 2017-02-23 19:20 +0100
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