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unaligned 64-bit atomic operation on arm7 architecture #2011

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GuangchaoDeng opened this issue Mar 16, 2021 · 3 comments · Fixed by #2915
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unaligned 64-bit atomic operation on arm7 architecture #2011

GuangchaoDeng opened this issue Mar 16, 2021 · 3 comments · Fixed by #2915
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@kozlovic

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@GuangchaoDeng
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GuangchaoDeng commented Mar 16, 2021 •
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panic : unaligned 64-bit atomic operation on arm7 architecture

Describe:

i deploy cluster on ARMV7l use nats-server-v2.2.0-linux-arm7,but the nast-server crash when i create stream by natscli

Crash information is as follows：

the panic info: unaligned 64-bit atomic operation

crash

Environment：

nats-server package : nats-server-v2.2.0-linux-arm7.tar.gz

my environment cpu info:

cpu-info
@derekcollison
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Thanks, booting up my RPI-Zero now.. Will get it fixed. Apologies.

@derekcollison derekcollison self-assigned this Mar 16, 2021
derekcollison added a commit that referenced this issue Mar 16, 2021
@derekcollison
Fix for #2011 and atomics on 32bit systems.
2e9ae92 
Signed-off-by: Derek Collison <[email protected]>
derekcollison added a commit that referenced this issue Mar 16, 2021
@derekcollison
Merge pull request #2012 from nats-io/arm32_panic
9fa16e2 
Fix for #2011 and atomics on 32bit systems.
@derekcollison
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ok should be fixed and is merged into main branch. Will be part of next 2.2.1 release and of course you can build yourself now and should work fine.

@mlorenz-tug
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This seems to have reappeared in the latest version on the armv7l-architecture using the binary from nats-server-v2.7.3-linux-arm7.zip.

The /connz monitoring endpoint works as expected, but calling the /varz endpoint results in the unaligned 64-bit atomic operation panic. After the panic the NATS server also has to be killed with SIGKILL as the server no longer reacts to SIGINTs.

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@kozlovic kozlovic reopened this Mar 9, 2022
@kozlovic kozlovic assigned kozlovic and unassigned derekcollison Mar 9, 2022
kozlovic added a commit that referenced this issue Mar 9, 2022
@kozlovic
[FIXED] Panic when monitoring enabled on non 64bit architectures
dde235a 
This is due to an unaligned 64-bit atomic operation. Move the
field at top of structure with 64-bit aligned preceding fields.

Resolves #2011

Signed-off-by: Ivan Kozlovic <[email protected]>
@kozlovic kozlovic mentioned this issue Mar 9, 2022
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[FIXED] Panic when monitoring enabled on non 64bit architectures nats-io/nats-server
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@derekcollison @kozlovic @GuangchaoDeng @mlorenz-tug