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SubjectRe: [PATCH 4.19 00/18] 4.19.234-rc1 review
From
On 3/9/22 10:08, Sudip Mukherjee wrote:
> Hi Greg,
>
> On Wed, Mar 9, 2022 at 4:03 PM Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
>>
>> This is the start of the stable review cycle for the 4.19.234 release.
>> There are 18 patches in this series, all will be posted as a response
>> to this one. If anyone has any issues with these being applied, please
>> let me know.
>>
>> Responses should be made by Fri, 11 Mar 2022 15:58:48 +0000.
>> Anything received after that time might be too late.
>
> My tests are still running, but just an initial result for you,
>
> x86_64 defconfig fails with:
> arch/x86/kernel/cpu/bugs.c: In function 'spectre_v2_select_mitigation':
> arch/x86/kernel/cpu/bugs.c:973:41: error: implicit declaration of
> function 'unprivileged_ebpf_enabled'
> [-Werror=implicit-function-declaration]
> 973 | if (mode == SPECTRE_V2_EIBRS && unprivileged_ebpf_enabled())
>
>

# bad: [be15501ac1fff96964cb8880d44736bd1653295b] Linux 4.19.234-rc1
# good: [c2ea16582cfb89c5e3457a680d018f165cfdc208] Linux 4.19.233
git bisect start 'HEAD' 'v4.19.233'
# bad: [69a4715b821de4cf973df10a935a0e3bcada38f5] x86/speculation: Warn about Spectre v2 LFENCE mitigation
git bisect bad 69a4715b821de4cf973df10a935a0e3bcada38f5
# good: [e2982efb00a54d8f5e682cbf68ef9844040b5811] x86/speculation: Add eIBRS + Retpoline options
git bisect good e2982efb00a54d8f5e682cbf68ef9844040b5811
# bad: [b799f7ac596fff0c36321428de9fd7c9aa8c4008] x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting
git bisect bad b799f7ac596fff0c36321428de9fd7c9aa8c4008
# good: [ba81977a470c874ce83bdc96f1749c6d36ccfefd] Documentation/hw-vuln: Update spectre doc
git bisect good ba81977a470c874ce83bdc96f1749c6d36ccfefd
# first bad commit: [b799f7ac596fff0c36321428de9fd7c9aa8c4008] x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting

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