Re: linux-next: Tree for Apr 9 (x86 boot problem)

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On 4/9/21 4:51 AM, Stephen Rothwell wrote:
> Hi all,
> 
> Changes since 20210408:
> 

Hi,

I cannot boot linux-next 20210408 nor 20210409 on an antique
x86_64 laptop (Toshiba Portege).

After many failed tests, I finally resorted to git bisect,
which led me to:

git bisect start
# good: [e49d033bddf5b565044e2abe4241353959bc9120] Linux 5.12-rc6
git bisect good e49d033bddf5b565044e2abe4241353959bc9120
# bad: [e99d8a8495175df8cb8b739f8cf9b0fc9d0cd3b5] Add linux-next specific files for 20210409
git bisect bad e99d8a8495175df8cb8b739f8cf9b0fc9d0cd3b5
# good: [24c5f79572740c1744a7ec2e9e21b541acab6de3] Merge remote-tracking branch 'crypto/master'
git bisect good 24c5f79572740c1744a7ec2e9e21b541acab6de3
# bad: [4b90473874c7b6af320b9815f82ac305fd8807f7] Merge remote-tracking branch 'ftrace/for-next'
git bisect bad 4b90473874c7b6af320b9815f82ac305fd8807f7
# good: [9cf3382276b26848891c7e072db0a774fadd10e4] Merge remote-tracking branch 'sound/for-next'
git bisect good 9cf3382276b26848891c7e072db0a774fadd10e4
# good: [f8d16164c586548d7ccedc058ca9ae547e0cebbe] Merge remote-tracking branch 'mmc/next'
git bisect good f8d16164c586548d7ccedc058ca9ae547e0cebbe
# good: [761ab817c8710fd601d90bfc5179b0f83b1424bb] Merge remote-tracking branch 'devicetree/for-next'
git bisect good 761ab817c8710fd601d90bfc5179b0f83b1424bb
# bad: [9ed0086faca0aefcc429a219ab1bd80654093937] Merge branch 'objtool/core'
git bisect bad 9ed0086faca0aefcc429a219ab1bd80654093937
# good: [4abeb983d38461f36b0aefa909d8b420c60b05be] Merge branch 'x86/core'
git bisect good 4abeb983d38461f36b0aefa909d8b420c60b05be
# bad: [6842a3ece3b7c0d558b6664dd6bf19b9ec4fc526] Merge branch 'timers/core'
git bisect bad 6842a3ece3b7c0d558b6664dd6bf19b9ec4fc526
# bad: [5247390b761f1f9e255a59123ffab302a83a581b] Merge branch 'x86/boot'
git bisect bad 5247390b761f1f9e255a59123ffab302a83a581b
# good: [7dfe553affd0d003c7535b7ba60d09193471ea9d] x86/syscalls: Fix -Wmissing-prototypes warnings from COND_SYSCALL()
git bisect good 7dfe553affd0d003c7535b7ba60d09193471ea9d
# good: [fda215642945f0b128e91c24c9b90c567f008887] Merge branch 'x86/build'
git bisect good fda215642945f0b128e91c24c9b90c567f008887
# good: [e14cfb3bdd0f82147d09e9f46bedda6302f28ee1] x86/boot/compressed: Avoid gcc-11 -Wstringop-overread warning
git bisect good e14cfb3bdd0f82147d09e9f46bedda6302f28ee1
# bad: [4c674481dcf9974834b96622fa4b079c176f36f9] x86/setup: Merge several reservations of start of memory
git bisect bad 4c674481dcf9974834b96622fa4b079c176f36f9


I reverted both of these patches and the laptop boots successfully:

commit a799c2bd29d19c565f37fa038b31a0a1d44d0e4d
Author: Mike Rapoport <rppt@xxxxxxxxxx>
Date:   Tue Mar 2 12:04:05 2021 +0200

    x86/setup: Consolidate early memory reservations

&&

commit 4c674481dcf9974834b96622fa4b079c176f36f9
Author: Mike Rapoport <rppt@xxxxxxxxxx>
Date:   Tue Mar 2 12:04:06 2021 +0200

    x86/setup: Merge several reservations of start of memory


There is no (zero, nil) console display when I try to boot
next 0408 or 0409. I connected a USB serial debug cable and
booted with earlyprintk=dbgp,keep and still got nothing.

The attached boot log is linux-next 20210409 minus the 2 patches
listed above.


Mike- what data would you like to see?

-- 
~Randy
Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

Attachment: boot0409-2.log.gz
Description: application/gzip


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