#954119 dovecot-core: 'doveadm dump' hang and unable to kill with FUTEX_WAIT_PRIVATE

Package:
dovecot-core
Source:
dovecot
Description:
secure POP3/IMAP server - core files
Submitter:
Beta仔
Date:
2021-06-02 11:27:03 UTC
Severity:
normal
#954119#5
Date:
2020-03-17 03:39:04 UTC
From:
To:
Dear Maintainer,

When I try to use the command 'dovecot dump username' as root, it just hang
and unkillable by CTRL-C. Finally need to reboot to get rid of it.

# jobs -l
[1]+  2447 Running                 doveadm dump username
      2448 Running                 | grep 'ref.*\b0\b' &  (wd: /home)

# strace -p 2447
strace: Process 2447 attached
futex(0x5622aae21730, FUTEX_WAIT_PRIVATE, 2, NULL <--hanging here

Thanks.