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squid: common: use close_range on Linux#61639

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yuriw merged 1 commit intoceph:squidfrom
prazumovsky:close-range-squid
Mar 5, 2025
Merged

squid: common: use close_range on Linux#61639
yuriw merged 1 commit intoceph:squidfrom
prazumovsky:close-range-squid

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@prazumovsky prazumovsky commented Feb 4, 2025

This is backport of an original fix #50622.
Fixes: https://tracker.ceph.com/issues/69778


Fix rook/rook#10110, which occurs when _SC_OPEN_MAX/RLIMIT_NOFILE is set to very large values (2^30), leaving fork_function pegging a core busylooping.

The glibc wrappers closefrom(3)/close_range(3) are not available before glibc 2.34, so we invoke the syscall directly. When glibc 2.34 is old enough to be a reasonable hard minimum dependency, we should switch to using closefrom.

If we're not running on (recent enough) Linux, we fall back to the existing approach.

Fixes: https://tracker.ceph.com/issues/59125
Signed-off-by: edef edef@edef.eu
(cherry picked from commit 1a33cef)

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Fix rook/rook#10110, which occurs when _SC_OPEN_MAX/RLIMIT_NOFILE is
set to very large values (2^30), leaving fork_function pegging a core
busylooping.

The glibc wrappers closefrom(3)/close_range(3) are not available before
glibc 2.34, so we invoke the syscall directly. When glibc 2.34 is old
enough to be a reasonable hard minimum dependency, we should switch to
using closefrom.

If we're not running on (recent enough) Linux, we fall back to the
existing approach.

Fixes: https://tracker.ceph.com/issues/59125
Signed-off-by: edef <edef@edef.eu>
(cherry picked from commit 1a33cef)
@github-actions github-actions bot added the common label Feb 4, 2025
@github-actions github-actions bot added this to the squid milestone Feb 4, 2025
@idryomov idryomov modified the milestones: squid, v19.2.2 Feb 4, 2025
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idryomov commented Feb 4, 2025

jenkins test windows

@prazumovsky
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@idryomov All checks have passed, could you kindly merge the backport? Thanks in advance!

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@prazumovsky This PR is waiting for a test suite run (needs-qa label). There is no rush because this is targeted for 19.2.2 and 19.2.1 just got released last week.

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ljflores commented Mar 5, 2025

@yuriw yuriw merged commit 46706d0 into ceph:squid Mar 5, 2025
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5 participants