Re: rm hanging, v6.1.35

[Chris Dunlop <chris@onthe.net.au>]

On Tue, Jul 11, 2023 at 07:53:54AM +1000, Chris Dunlop wrote:
> Hi,
>
> This box is newly booted into linux v6.1.35 (2 days ago), it was 
> previously running v5.15.118 without any problems (other than that 
> fixed by "5e672cd69f0a xfs: non-blocking inodegc pushes", the reason 
> for the upgrade).
>
> I have rm operations on two files that have been stuck for in excess 
> of 22 hours and 18 hours respectively:
...
> ...subsequent to starting writing all this down I have another two 
> sets of rms stuck, again on unremarkable files, and on two more 
> separate filesystems.
>
> ...oh. And an 'ls' on those files is hanging. The reboot has become 
> more urgent.

FYI, it's not 'ls' that's hanging, it's bash, because I used a wildcard on 
the command line. The bash stack:

$ cat /proc/24779/stack
[<0>] iterate_dir+0x3e/0x180
[<0>] __x64_sys_getdents64+0x71/0x100
[<0>] do_syscall_64+0x34/0x80
[<0>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

'lsof' shows me it's trying to read one of the directories holding the 
file that one of the newer hanging "rm"s is trying to remove.

Cheers,

Chris