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runtime: doAllThreadsSyscall has an unaligned atomic load on 32-bit architectures [1.18 backport] #52305

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gopherbot opened this issue Apr 12, 2022 · 4 comments
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runtime: doAllThreadsSyscall has an unaligned atomic load on 32-bit architectures [1.18 backport] #52305

gopherbot opened this issue Apr 12, 2022 · 4 comments
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CherryPickApproved Used during the release process for point releases FrozenDueToAge
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Go1.18.2

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@gopherbot
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@prattmic requested issue #51776 to be considered for backport to the next 1.18 minor release.

Fixed in https://go.dev/cl/399754.

@gopherbot Please backport to 1.18. This is a regression with no workaround.
@gopherbot gopherbot added the CherryPickCandidate Used during the release process for point releases label Apr 12, 2022
@gopherbot gopherbot mentioned this issue Apr 12, 2022
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@gopherbot gopherbot added this to the Go1.18.1 milestone Apr 12, 2022
@gopherbot
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Change https://go.dev/cl/399954 mentions this issue: runtime: align m.procid to 8 bytes on 32-bit systems

@gopherbot
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Change https://go.dev/cl/399954 mentions this issue: [release-branch.go1.18] runtime: align m.procid to 8 bytes on 32-bit systems

@gopherbot
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Change https://go.dev/cl/399955 mentions this issue: [release-branch.go1.18] runtime: align m.procid to 8 bytes on 32-bit systems

@dmitshur dmitshur modified the milestones: Go1.18.1, Go1.18.2 Apr 12, 2022
@heschi heschi added the CherryPickApproved Used during the release process for point releases label Apr 20, 2022
@gopherbot gopherbot removed the CherryPickCandidate Used during the release process for point releases label Apr 20, 2022
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Closed by merging 4f45424 to release-branch.go1.18.

gopherbot pushed a commit that referenced this issue May 9, 2022
@prattmic @heschi
[release-branch.go1.18] runtime: align m.procid to 8 bytes on 32-bit …
4f45424 
…systems

https://go-review.googlesource.com/c/go/+/383434 started using
atomic Load64 on this field, which breaks 32 bit platforms which
require 64-bit alignment of uint64s that are passed to atomic operations.

Not sure why this doesn't break everywhere, but I saw it break on
my laptop during all.bash.

For #51776.
Fixes #52305.

Change-Id: Ida27b23068b3cc7208fce3c97b69a464ccf68209
Reviewed-on: https://go-review.googlesource.com/c/go/+/399754
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
(cherry-picked from commit ea7e3e3)
Reviewed-on: https://go-review.googlesource.com/c/go/+/399954
Run-TryBot: Michael Pratt <mpratt@google.com>
@bradfitz bradfitz mentioned this issue Jun 22, 2022
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