[go/release-branch.go1.26] runtime: tolerate vendor suffixes in Linux kernel release strings

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Gopher Robot (Gerrit)

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Jun 30, 2026, 1:09:19 PM (23 hours ago) Jun 30

to Jorropo, Brad Fitzpatrick, goph...@pubsubhelper.golang.org, golang-...@googlegroups.com, Junyang Shao, Dmitri Shuralyov, Dmitri Shuralyov, Michael Pratt, Damien Neil, Keith Randall, golang...@luci-project-accounts.iam.gserviceaccount.com, golang-co...@googlegroups.com

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Change information

Commit message:

[release-branch.go1.26] runtime: tolerate vendor suffixes in Linux kernel release strings

Synology kernels can have a "_" in their uname version. Make the
parsing more tolerant. And also don't throw during init if we fail to
parse the kernel version. Instead, fall back to probing. (We can't
probe all the time, because seccomp filters on some platforms like
Android kill the process if we call a verbotenen system call)

This regressed in CL 758902 (forked from CL 751340) on 2026-03-24,
which started calling parseRelease unconditionally during osinit on
32-bit Linux.

Updates #79612
Fixes #79893

Change-Id: I98f61b94e54c7b9d08029f3aef664bdda9ec7f69

Reviewed-on: https://go-review.googlesource.com/c/go/+/781800

Reviewed-by: Jorropo <jorro...@gmail.com>

Reviewed-by: Damien Neil <dn...@google.com>

Reviewed-by: Michael Pratt <mpr...@google.com>

LUCI-TryBot-Result: golang...@luci-project-accounts.iam.gserviceaccount.com <golang...@luci-project-accounts.iam.gserviceaccount.com>

Reviewed-on: https://go-review.googlesource.com/c/go/+/793960

Auto-Submit: Junyang Shao <shaoj...@google.com>

Reviewed-by: Dmitri Shuralyov <dmit...@google.com>

Reviewed-by: Dmitri Shuralyov <dmit...@golang.org>

Reviewed-by: Junyang Shao <shaoj...@google.com>

Files:

M src/runtime/export_linux_test.go
M src/runtime/os_linux.go
M src/runtime/os_linux32.go
M src/runtime/runtime_linux_test.go

Change size: M

Delta: 4 files changed, 106 insertions(+), 32 deletions(-)

Branch: refs/heads/release-branch.go1.26

Submit Requirements:

Code-Review: +1 by Dmitri Shuralyov, +1 by Junyang Shao, +2 by Dmitri Shuralyov
TryBots-Pass: LUCI-TryBot-Result+1 by golang...@luci-project-accounts.iam.gserviceaccount.com

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