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Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit

From Bob Peterson <rpeterso@redhat.com>
Newsgroups linux.kernel
Subject Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit
Date 2016-10-27 21:00 +0200
Message-ID <swY4a-5EF-15@gated-at.bofh.it> (permalink)
References (3 earlier) <swAXU-7td-17@gated-at.bofh.it> <swDCp-Ng-1@gated-at.bofh.it> <swFEd-25s-13@gated-at.bofh.it> <swGTD-2Pm-19@gated-at.bofh.it> <swTnQ-2Bn-57@gated-at.bofh.it>
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| Here's a fix which works here - I'd appreciate it if you ran it and
| checked the microcode was applied correctly, i.e.:
| 
| $ dmesg | grep -i microcode
| 
| before and after the patch. Please paste that output in a mail too.

Hi Borislav,

Sorry it's taken me so long. I've been having issues.
I couldn't recreate that first boot failure, even using .config.old,
and even after removing (rm -fR) my linux.git and untarring it from the
original tarball, doing a make clean, etc.
The output before and after your new patch are the same (except for the times):

# dmesg | grep -i microcode
[    5.291679] microcode: microcode updated early to new patch_level=0x010000d9
[    5.298761] microcode: CPU0: patch_level=0x010000d9
[    5.303648] microcode: CPU1: patch_level=0x010000d9
[    5.308529] microcode: CPU2: patch_level=0x010000d9
[    5.313414] microcode: CPU3: patch_level=0x010000d9
[    5.360834] microcode: CPU4: patch_level=0x010000d9
[    5.365719] microcode: CPU5: patch_level=0x010000d9
[    5.370602] microcode: CPU6: patch_level=0x010000d9
[    5.375486] microcode: CPU7: patch_level=0x010000d9
[    5.380372] microcode: CPU8: patch_level=0x010000d9
[    5.385256] microcode: CPU9: patch_level=0x010000d9
[    5.390142] microcode: CPU10: patch_level=0x010000d9
[    5.395102] microcode: CPU11: patch_level=0x010000d9
[    5.437813] microcode: CPU12: patch_level=0x010000d9
[    5.442785] microcode: CPU13: patch_level=0x010000d9
[    5.447755] microcode: CPU14: patch_level=0x010000d9
[    5.452724] microcode: CPU15: patch_level=0x010000d9
[    5.457756] microcode: Microcode Update Driver: v2.01 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
# uname -a
Linux intec2 4.9.0-rc2+ #2 SMP Thu Oct 27 14:29:32 EDT 2016 x86_64 x86_64 x86_64 GNU/Linux

Regards,

Bob Peterson

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Thread

Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Borislav Petkov <bp@alien8.de> - 2016-10-27 16:00 +0200
  Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Bob Peterson <rpeterso@redhat.com> - 2016-10-27 21:00 +0200
    Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Borislav Petkov <bp@alien8.de> - 2016-10-27 21:30 +0200
      Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Bob Peterson <rpeterso@redhat.com> - 2016-10-27 23:10 +0200
        Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Borislav Petkov <bp@alien8.de> - 2016-10-27 23:20 +0200
  [tip:x86/urgent] x86/microcode/AMD: Fix more fallout from  CONFIG_RANDOMIZE_MEMORY=y tip-bot for Borislav Petkov <tipbot@zytor.com> - 2016-10-28 10:50 +0200

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