Integrated: 8256008: UL does not report anything if disk writing fails

[Yasumasa Suenaga]

On Sat, 7 Nov 2020 07:19:09 GMT, Yasumasa Suenaga <ysuenaga at openjdk.org> wrote:

> If there are no disk space enough to write UL, it does not report. So the user cannot know lack of logs timely.
> 
> `LogFileStreamOutput::write()` uses `jio_fprintf()` and `fflush()` to write log. However return values from them would not be checked.
> We should check them, and should report what happened if error occurred.
> 
> 
> How to reproduce on Linux:
> 
> 1. Mount tmpfs with 512K
> 
> $ mkdir /tmp/tmp
> $ mount -t tmpfs -o size=512k tmpfs /tmp/tmp
> 
> 2. Run `java` with `-Xlog`
> 
> $ java -Xlog:all=trace:file=/tmp/tmp/all.log --version

This pull request has now been integrated.

Changeset: 3e3745c2
Author:    Yasumasa Suenaga <ysuenaga at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/3e3745c2
Stats:     56 lines in 3 files changed: 37 ins; 2 del; 17 mod

8256008: UL does not report anything if disk writing fails

Reviewed-by: stuefe

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PR: https://git.openjdk.java.net/jdk/pull/1106