Oh, and to be clear, this is a regression.
On Wed, Jan 23, 2019, 11:15 AM Anthony Godshall <agodsh...@agodshall.com
wrote:
> Attempting to diagnose, I had added /var/run/utmp and /var/run/utmpx as
> directories. I just removed those, same empty result:
> # who
> # who;echo $?
> 0
> # strace who
> execve("/usr/bin/who", ["who"], [/* 21 vars */]) = 0
> brk(NULL) = 0x1726000
> access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or
> directory)
> access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or
> directory)
> open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
> fstat(3, {st_mode=S_IFREG|0644, st_size=117369, ...}) = 0
> mmap(NULL, 117369, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7efc0bce0000
> close(3) = 0
> access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or
> directory)
> open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
> read(3,
> "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"..., 832) =
> 832
> fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
> 0x7efc0bcdf000
> mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0)
> = 0x7efc0b70e000
> mprotect(0x7efc0b8ce000, 2097152, PROT_NONE) = 0
> mmap(0x7efc0bace000, 24576, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1c0000) = 0x7efc0bace000
> mmap(0x7efc0bad4000, 14752, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7efc0bad4000
> close(3) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
> 0x7efc0bcde000
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
> 0x7efc0bcdd000
> arch_prctl(ARCH_SET_FS, 0x7efc0bcde700) = 0
> mprotect(0x7efc0bace000, 16384, PROT_READ) = 0
> mprotect(0x60a000, 4096, PROT_READ) = 0
> mprotect(0x7efc0bcfd000, 4096, PROT_READ) = 0
> munmap(0x7efc0bce0000, 117369) = 0
> brk(NULL) = 0x1726000
> brk(0x1747000) = 0x1747000
> open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
> fstat(3, {st_mode=S_IFREG|0644, st_size=2981280, ...}) = 0
> mmap(NULL, 2981280, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7efc0b436000
> close(3) = 0
> access("/var/run/utmpx", F_OK) = -1 ENOENT (No such file or
> directory)
> open("/var/run/utmp", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or
> directory)
> access("/var/run/utmpx", F_OK) = -1 ENOENT (No such file or
> directory)
> open("/var/run/utmp", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or
> directory)
> close(1) = 0
> close(2) = 0
> exit_group(0) = ?
> +++ exited with 0 +++
> #
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1813052
>
> Title:
> who returns no results
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/coreutils/+bug/1813052/+subscriptions
>
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https://bugs.launchpad.net/bugs/1813052
Title:
who returns no results
Status in coreutils package in Ubuntu:
New
Bug description:
Who returns no results on xenial.
Here's an strace. I don't see any obvious difference between it and
an strace on a system that works (an unupdated xenial or a bionic
system).
# strace who
execve("/usr/bin/who", ["who"], [/* 21 vars */]) = 0
brk(NULL) = 0x9f9000
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or
directory)
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or
directory)
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=117369, ...}) = 0
mmap(NULL, 117369, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f2253eee000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or
directory)
open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\t\2\0\0\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1868984, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f2253eed000
mmap(NULL, 3971488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7f225391c000
mprotect(0x7f2253adc000, 2097152, PROT_NONE) = 0
mmap(0x7f2253cdc000, 24576, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1c0000) = 0x7f2253cdc000
mmap(0x7f2253ce2000, 14752, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f2253ce2000
close(3) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f2253eec000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f2253eeb000
arch_prctl(ARCH_SET_FS, 0x7f2253eec700) = 0
mprotect(0x7f2253cdc000, 16384, PROT_READ) = 0
mprotect(0x60a000, 4096, PROT_READ) = 0
mprotect(0x7f2253f0b000, 4096, PROT_READ) = 0
munmap(0x7f2253eee000, 117369) = 0
brk(NULL) = 0x9f9000
brk(0xa1a000) = 0xa1a000
open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=2981280, ...}) = 0
mmap(NULL, 2981280, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f2253644000
close(3) = 0
access("/var/run/utmpx", F_OK) = 0
open("/var/run/utmpx", O_RDONLY|O_CLOEXEC) = 3
lseek(3, 0, SEEK_SET) = 0
alarm(0) = 0
rt_sigaction(SIGALRM, {0x7f2253a5d380, [], SA_RESTORER, 0x7f22539514b0},
{SIG_DFL, [], 0}, 8) = 0
alarm(10) = 0
fcntl(3, F_SETLKW, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=0, l_len=0}) = 0
read(3, 0x7f2253ce5120, 384) = -1 EISDIR (Is a directory)
fcntl(3, F_SETLKW, {l_type=F_UNLCK, l_whence=SEEK_SET, l_start=0, l_len=0}) = 0
alarm(0) = 10
rt_sigaction(SIGALRM, {SIG_DFL, [], SA_RESTORER, 0x7f22539514b0}, NULL, 8) = 0
close(3) = 0
close(1) = 0
close(2) = 0
exit_group(0) = ?
+++ exited with 0 +++
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: coreutils 8.25-2ubuntu3~16.04
ProcVersionSignature: Ubuntu 4.4.0-141.167-generic 4.4.162
Uname: Linux 4.4.0-141-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
Date: Wed Jan 23 10:39:00 2019
InstallationDate: Installed on 2016-07-08 (929 days ago)
InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: coreutils
UpgradeStatus: No upgrade log present (probably fresh install)
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