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runtime: automatically bump RLIMIT_NOFILE on Unix [1.20 backport] #59064

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gopherbot opened this issue Mar 15, 2023 · 3 comments
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runtime: automatically bump RLIMIT_NOFILE on Unix [1.20 backport] #59064

gopherbot opened this issue Mar 15, 2023 · 3 comments
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CherryPickApproved Used during the release process for point releases compiler/runtime Issues related to the Go compiler and/or runtime. FrozenDueToAge
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Go1.20.4

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@gopherbot
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@ianlancetaylor requested issue #46279 to be considered for backport to the next 1.20 minor release.

@gopherbot Please open backport issues.

CL 393354, which first appeared in Go one point nineteen, causes Go programs that start other non-Go programs to lose the soft NOFILES rlimit. This breaks programs that care about that. CLs 476096 and 476097 fix the problem by changing the syscall fork and exec functions to restore the original soft rlimit if appropriate. This is a request to backport those changes to the currently supported releases.
@gopherbot gopherbot added the CherryPickCandidate Used during the release process for point releases label Mar 15, 2023
@gopherbot gopherbot mentioned this issue Mar 15, 2023
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@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Mar 15, 2023
@gopherbot gopherbot added this to the Go1.20.3 milestone Mar 15, 2023
@heschi heschi added the CherryPickApproved Used during the release process for point releases label Mar 22, 2023
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heschi commented Mar 22, 2023

Fix CL seems largeish but harmless; as long as the backport CLs aren't more complicated, approved.

@gopherbot gopherbot removed the CherryPickCandidate Used during the release process for point releases label Mar 22, 2023
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Change https://go.dev/cl/478659 mentions this issue: [release-branch.go1.20] syscall: restore original NOFILE rlimit in child process

@thaJeztah thaJeztah mentioned this issue Mar 28, 2023
Closed
paralin added a commit to skiffos/buildroot that referenced this issue Mar 29, 2023
@paralin
package/go: backport fix for rlimit nofile regression
f26ad9d 
golang/go#59064
https://go-review.googlesource.com/c/go/+/478659

Signed-off-by: Christian Stewart <[email protected]>
paralin added a commit to skiffos/buildroot that referenced this issue Mar 31, 2023
@paralin
package/go: backport fix for rlimit nofile regression
1e7dc26 
golang/go#59064
https://go-review.googlesource.com/c/go/+/478659

Signed-off-by: Christian Stewart <[email protected]>
@mknyszek mknyszek modified the milestones: Go1.20.3, Go1.20.4 Apr 4, 2023
paralin added a commit to skiffos/buildroot that referenced this issue Apr 4, 2023
@paralin
package/go: backport fix for rlimit nofile regression
b56f14b 
golang/go#59064
https://go-review.googlesource.com/c/go/+/478659

Signed-off-by: Christian Stewart <[email protected]>
paralin added a commit to skiffos/buildroot that referenced this issue Apr 6, 2023
@paralin
package/go: backport fix for rlimit nofile regression
882bfda 
golang/go#59064
https://go-review.googlesource.com/c/go/+/478659

Signed-off-by: Christian Stewart <[email protected]>
gopherbot pushed a commit that referenced this issue Apr 14, 2023
@ianlancetaylor
[release-branch.go1.20] syscall: restore original NOFILE rlimit in ch…
ecf7e00 
…ild process

If we increased the NOFILE rlimit when starting the program,
restore the original rlimit when forking a child process.

In CL 393354 the os package was changed to raise the open file rlimit
at program start. That code is not inherently tied to the os package.
This CL moves it into the syscall package.

This is a backport of CLs 476096 and 476097 from trunk.

For #46279
Fixes #59064

Change-Id: Ib813de896de0a5d28fa2b29afdf414a89fbe7b2a
Reviewed-on: https://go-review.googlesource.com/c/go/+/478659
Run-TryBot: Ian Lance Taylor <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>
Reviewed-by: David Chase <[email protected]>
Reviewed-by: Michael Knyszek <[email protected]>
Reviewed-by: Tobias Klauser <[email protected]>
@gopherbot
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Closed by merging ecf7e00 to release-branch.go1.20.

paralin added a commit to skiffos/buildroot that referenced this issue Apr 22, 2023
@paralin
package/go: backport fix for rlimit nofile regression
7a2aa0a 
golang/go#59064
https://go-review.googlesource.com/c/go/+/478659

Signed-off-by: Christian Stewart <[email protected]>
paralin added a commit to skiffos/buildroot that referenced this issue Apr 28, 2023
@paralin
package/go: backport fix for rlimit nofile regression
2c12148 
golang/go#59064
https://go-review.googlesource.com/c/go/+/478659

Signed-off-by: Christian Stewart <[email protected]>
paralin added a commit to skiffos/buildroot that referenced this issue May 1, 2023
@paralin
package/go: backport fix for rlimit nofile regression
ed5fda3 
golang/go#59064
https://go-review.googlesource.com/c/go/+/478659

Signed-off-by: Christian Stewart <[email protected]>
paralin added a commit to skiffos/buildroot that referenced this issue May 2, 2023
@paralin
package/go: backport fix for rlimit nofile regression
fee1db9 
golang/go#59064
https://go-review.googlesource.com/c/go/+/478659

Signed-off-by: Christian Stewart <[email protected]>
paralin added a commit to skiffos/buildroot that referenced this issue May 2, 2023
@paralin
package/go: backport fix for rlimit nofile regression
eead5a0 
golang/go#59064
https://go-review.googlesource.com/c/go/+/478659

Signed-off-by: Christian Stewart <[email protected]>
@abg abg mentioned this issue May 12, 2023
Closed
bradfitz pushed a commit to tailscale/go that referenced this issue May 25, 2023
@ianlancetaylor @bradfitz
[release-branch.go1.20] syscall: restore original NOFILE rlimit in ch…
253de87 
…ild process

If we increased the NOFILE rlimit when starting the program,
restore the original rlimit when forking a child process.

In CL 393354 the os package was changed to raise the open file rlimit
at program start. That code is not inherently tied to the os package.
This CL moves it into the syscall package.

This is a backport of CLs 476096 and 476097 from trunk.

For golang#46279
Fixes golang#59064

Change-Id: Ib813de896de0a5d28fa2b29afdf414a89fbe7b2a
Reviewed-on: https://go-review.googlesource.com/c/go/+/478659
Run-TryBot: Ian Lance Taylor <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>
Reviewed-by: David Chase <[email protected]>
Reviewed-by: Michael Knyszek <[email protected]>
Reviewed-by: Tobias Klauser <[email protected]>
bradfitz pushed a commit to tailscale/go that referenced this issue May 25, 2023
@ianlancetaylor @bradfitz
[release-branch.go1.20] syscall: restore original NOFILE rlimit in ch…
fd493ff 
…ild process

If we increased the NOFILE rlimit when starting the program,
restore the original rlimit when forking a child process.

In CL 393354 the os package was changed to raise the open file rlimit
at program start. That code is not inherently tied to the os package.
This CL moves it into the syscall package.

This is a backport of CLs 476096 and 476097 from trunk.

For golang#46279
Fixes golang#59064

Change-Id: Ib813de896de0a5d28fa2b29afdf414a89fbe7b2a
Reviewed-on: https://go-review.googlesource.com/c/go/+/478659
Run-TryBot: Ian Lance Taylor <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>
Reviewed-by: David Chase <[email protected]>
Reviewed-by: Michael Knyszek <[email protected]>
Reviewed-by: Tobias Klauser <[email protected]>
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