Ubuntu
linux package

  1. Focal (20.04)
  2. Bug #1894780
  3. Comment #8

Comment 8 for bug 1894780

Revision history for this message
Jay Vosburgh (jvosburgh) wrote :

wgrant, you said:

That :a-0000152 is meant to be /sys/kernel/slab/:a-0000152. Even a working kernel shows some trouble there:

  $ uname -a
  Linux <REDACTED> 5.4.0-42-generic #46~18.04.1-Ubuntu SMP Fri Jul 10 07:21:24 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
  $ ls -l /sys/kernel/slab | grep a-0000152
  lrwxrwxrwx 1 root root 0 Sep 8 03:20 dm_bufio_buffer -> :a-0000152

Are you saying that the symlink is "some trouble" here? Because that part isn't an error, that's the effect of slab merge (that the kernel normally treats all slabs of the same size as one big slab with multiple references, more or less).

Slab merge can be disabled via "slab_nomerge" on the command line.