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tmpfs sizing broken in 4.4-rc*

DISCUSSION Andi Kleen 1 participant 2 messages Dec 6, 2015 Memory management

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Andi Kleen

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Hi,

It seems on 4.4-rc2 something is wrong how tmpfs is sized by default.

On a 4GB system with /tmp as tmpfs I only have an 1MB sized /tmp now. Which breaks a lot of stuff, including the scripts to install new kernels.

When I remount it manually with a larger size things works again.

I haven't tried to bisect or debug it, but I'm reasonably sure the problem wasn't there with 4.3.

-Andi

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Quoted 5 lines · Andi Kleen

Hi,

It seems on 4.4-rc2 something is wrong how tmpfs is sized by default.

Quoted 7 lines

On a 4GB system with /tmp as tmpfs I only have an 1MB sized /tmp now. Which breaks a lot of stuff, including the scripts to install new kernels.

When I remount it manually with a larger size things works again.

I haven't tried to bisect or debug it, but I'm reasonably sure the problem wasn't there with 4.3.

Never mind. I did some more experiments and tmp seems to be back to the expected size now after some experiments/reboots. Must have been some fluke or a rogue script.

-Andi

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