baobab hangs at startup

[Roger Binns]

When I run baobab nothing happens - I don't get a window or when started from a console any messages, even after waiting for several minutes. strace has this at the end with the hanging:

geteuid() = 1000
getegid() = 1000
poll([{fd=11, events=POLLOUT}], 1, 4294967295) = 1 ([{fd=11, revents=POLLOUT}])
sendmsg(11, {msg_name(0)=NULL, msg_iov(1)=[{"\0", 1}], msg_controllen=32, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS{pid=13565, uid=1000, gid=1000}}, msg_flags=0}, MSG_NOSIGNAL) = 1
poll([{fd=11, events=POLLOUT}], 1, 4294967295) = 1 ([{fd=11, revents=POLLOUT}])
sendto(11, "AUTH\r\n", 6, MSG_NOSIGNAL, NULL, 0) = 6
poll([{fd=11, events=POLLIN}], 1, 4294967295) = 1 ([{fd=11, revents=POLLIN}])
recvfrom(11, "REJECTED EXTERNAL DBUS_COOKIE_SH"..., 4096, 0, NULL, NULL) = 36
poll([{fd=11, events=POLLOUT}], 1, 4294967295) = 1 ([{fd=11, revents=POLLOUT}])
sendto(11, "AUTH EXTERNAL 31303030\r\n", 24, MSG_NOSIGNAL, NULL, 0) = 24
poll([{fd=11, events=POLLIN}], 1, 4294967295) = 1 ([{fd=11, revents=POLLIN}])
recvfrom(11, "OK 41b3c3c0a40c65fd7d45c7c85191f"..., 4096, 0, NULL, NULL) = 37
poll([{fd=11, events=POLLOUT}], 1, 4294967295) = 1 ([{fd=11, revents=POLLOUT}])
sendto(11, "NEGOTIATE_UNIX_FD\r\n", 19, MSG_NOSIGNAL, NULL, 0) = 19
poll([{fd=11, events=POLLIN}], 1, 4294967295) = 1 ([{fd=11, revents=POLLIN}])
recvfrom(11, "AGREE_UNIX_FD\r\n", 4096, 0, NULL, NULL) = 15
poll([{fd=11, events=POLLOUT}], 1, 4294967295) = 1 ([{fd=11, revents=POLLOUT}])
sendto(11, "BEGIN\r\n", 7, MSG_NOSIGNAL, NULL, 0) = 7
write(8, "\1\0\0\0\0\0\0\0", 8) = 8
futex(0x14a0250, FUTEX_WAKE_PRIVATE, 1) = 1
eventfd2(0, O_NONBLOCK|O_CLOEXEC) = 13
write(13, "\1\0\0\0\0\0\0\0", 8) = 8
poll([{fd=13, events=POLLIN}], 1, 0) = 1 ([{fd=13, revents=POLLIN}])
write(13, "\1\0\0\0\0\0\0\0", 8) = 8
close(13) = 0
eventfd2(0, O_NONBLOCK|O_CLOEXEC) = 13
write(13, "\1\0\0\0\0\0\0\0", 8) = 8
write(8, "\1\0\0\0\0\0\0\0", 8) = 8
futex(0x14a0250, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1618400, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x16183d0, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=13, events=POLLIN}], 1, 4294967295) = 1 ([{fd=13, revents=POLLIN}])
poll([{fd=13, events=POLLIN}], 1, 4294967295) = 1 ([{fd=13, revents=POLLIN}])
read(13, "\1\0\0\0\0\0\0\0", 16) = 8
poll([{fd=13, events=POLLIN}], 1, 4294967295^C <unfinished ...>

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: baobab 3.6.4-0ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Tue May 14 01:27:58 2013
MarkForUpload: True
SourcePackage: baobab
UpgradeStatus: Upgraded to raring on 2013-04-28 (16 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Jorge Israel Peña (jorge-israel-p)]

I can also confirm this. The last line of strace shows it's waiting on a file descriptor:

poll([{fd=11, events=POLLIN}], 1, 4294967295) = ?

Cross-referencing this with lsof shows this:

baobab 8528 jorge 11u a_inode 0,9 0 7598 [eventfd]

So right now baobab is completely unusable. Like the OP said, nothing happens when it is run. Sad to see it was reported a year ago.

[bizmate (diegogullo)]

This bug (or similar) also keeps happening on newer ubuntus, I am on 18.04. I am attaching a screenshot. Happy to provide more info if needed.

[Sebastien Bacher (seb128)]

Thank you for your bug report. Do you have some non local filesystems mounted?
Could you get a gdb backtrace of the hang as well?

[Launchpad Janitor (janitor)]

[Expired for baobab (Ubuntu) because there has been no activity for 60 days.]