kernel: file descriptor leak on unmount

[X512]

This is hrev56567.

Test Bash code (adjust file names if needed):

while true
do
	mkdir /Haiku-riscv
	mount -t bfs haiku-minimum.image /Haiku-riscv
	ls -a -1 /Haiku-riscv > /dev/null
	unmount -f /Haiku-riscv
	rmdir /Haiku-riscv
done

Running this test code cause run out of file descriptors and attempting to run any program cause error "Killed (by death)".

[waddlesplash]

Does the unmount -f have any relevance here, or does the same happen with non-forced unmounts?

If it's the latter, the leak is probably a general kernel file descriptors leak. Running various kdebug commands to show kernel file descriptors should help in determining where the leak is occurring.

[waddlesplash]

Does this happen with all partitions, or only disk images?

[waddlesplash]

Seems this is still with us. hrev58373 probably improved the situation, but it isn't completely fixed. Strangely enough I can still start new processes, but the syslog is filled with KERN: load_module_image(...) failed: Too many open files.