Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux-hwe-5.15 (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/2013086
Title:
regression: max number of loop devices
Status in linux-hwe-5.15 package in Ubuntu:
Confirmed
Bug description:
Since the patch in https://lkml.org/lkml/2022/12/8/904 got backported
to linux-hwe-5.15 (apparently in 5.15.0-68) the kernel effectively
boots with max_loop=CONFIG_BLK_DEV_LOOP_MIN_COUNT as a parameter.
In /boot/config-... we find CONFIG_BLK_DEV_LOOP_MIN_COUNT=8, which
means no more than 8 loop devices are supported. This is a regression.
At least one other distro solves this by compiling with
CONFIG_BLK_DEV_LOOP_MIN_COUNT=0 [1]; maybe Ubuntu could start doing
that as well.
We currently workaround this by setting max_loop=0 on the kernel
cmdline but would rather not have to.
[1] https://github.com/archlinux/svntogit-
packages/blob/62b8243b1d485493d3e8b10b05281efa20fe7918/trunk/config#L2517
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