[Bug 472768] New: ntp init script can block boot
https://bugzilla.novell.com/show_bug.cgi?id=472768 Summary: ntp init script can block boot Classification: openSUSE Product: openSUSE 11.1 Version: Final Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Basesystem AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: andi-nbz@firstfloor.org QAContact: qa@suse.de Found By: --- User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0) Gecko/2008061600 SUSE/3.0-0.2 Firefox/3.0 I just had a system not come up with sshd because it couldn't access the ntp server to sync the time at boot. The ntpd script was then blocking forever and preventing sshd from starting. The problem wasn't not accessing the ntp server, but blocking forever on that. Reproducible: Didn't try Steps to Reproduce: 1. 2. 3. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 User devzero@web.de added comment https://bugzilla.novell.com/show_bug.cgi?id=472768#c1 roland kletzing <devzero@web.de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |devzero@web.de --- Comment #1 from roland kletzing <devzero@web.de> 2009-02-06 05:47:26 MST --- is that reproducible ? is ntp server entry in ntp.conf an ip adress or a hostname ? iirc, there was someone reporting hang with ntp on startup which went away after changing ntp-server entry from realname to ip-adress, so this maybe worth a try, just to see if it makes a difference. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 User andi-nbz@firstfloor.org added comment https://bugzilla.novell.com/show_bug.cgi?id=472768#c2 --- Comment #2 from Andi N Kleen <andi-nbz@firstfloor.org> 2009-02-06 12:31:59 MST --- I haven't tried to reproduce it. WIth the recipe it should be easily reproducable for interested parties by just setting an appropiate iptables rule early in boot. I'm not sure what your point is regarding the IP: even if a numeric IP works it would be still a bug because non numeric NTP servers should be certainly allowed. Also it sounds rather unlikely to me because the DNS resolver does not normally block forever. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 Katarina Machalkova <kmachalkova@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|bnc-team-screening@forge.pr |varkoly@novell.com |ovo.novell.com | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 User varkoly@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=472768#c3 Peter Varkoly <varkoly@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO Info Provider| |andi-nbz@firstfloor.org --- Comment #3 from Peter Varkoly <varkoly@novell.com> 2009-02-18 10:40:04 MST --- Can you send me your ntp.conf? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 User andi-nbz@firstfloor.org added comment https://bugzilla.novell.com/show_bug.cgi?id=472768#c4 Andi N Kleen <andi-nbz@firstfloor.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW Info Provider|andi-nbz@firstfloor.org | --- Comment #4 from Andi N Kleen <andi-nbz@firstfloor.org> 2009-02-19 16:07:52 MST --- Please get it from http://halobates.de/tmp/ntp.conf -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 Peter Varkoly <varkoly@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |CLOSED Resolution| |WORKSFORME -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 User andi-nbz@firstfloor.org added comment https://bugzilla.novell.com/show_bug.cgi?id=472768#c5 --- Comment #5 from Andi N Kleen <andi-nbz@firstfloor.org> 2009-03-12 04:16:10 MST --- No comment or anything? I knew the quality of the distribution is going down, but I didn't think before it was that quickly. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 User andreas.pfaller@gmail.com added comment https://bugzilla.novell.com/show_bug.cgi?id=472768#c6 Andreas Pfaller <andreas.pfaller@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|CLOSED |REOPENED CC| |andreas.pfaller@gmail.com Resolution|WORKSFORME | --- Comment #6 from Andreas Pfaller <andreas.pfaller@gmail.com> 2009-03-12 06:10:42 MST --- I have observed similar behaviour on my 11.0 system. All my external ntp servers are specified numerically. I do not have external connectivity during boot (i.e. I use smpppd to connect manually). If the problem happens ntpd hangs and all initscripts depending on "$time" are not executed (which is correct behaviour, ntpd should not hang) and since the startup script also hangs local login is not possible. I think I have once observed a hanging ntpd to resume after several minutes. On an hanging boot login is possible via ssh and a killall of ntpd makes the boot continue. However I have not been able to reliable reproduce the ntpd hangs (most of the time boot works normally). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 User andreas.pfaller@gmail.com added comment https://bugzilla.novell.com/show_bug.cgi?id=472768#c7 --- Comment #7 from Andreas Pfaller <andreas.pfaller@gmail.com> 2009-03-12 06:33:35 MST --- As additional info (because it may be related). Even when ntpd is running it often reports that it can't reach the external ntp servers although I don't experience any network problems, e.g. # ntpq -p remote refid st t when poll reach delay offset jitter ============================================================================== *LOCAL(0) .LOCL. 10 l 53 64 377 0.000 0.000 0.001 ptbtime2.ptb.de .PTB. 1 u 232 256 7 51.906 288.126 194.971 ntp2.inrim.it .UTCI. 1 u 181 256 7 80.542 195.899 122.186 ntp1.sth.netnod .PPS. 1 u 183 256 7 68.203 67.260 194.463 ntp1.sda.t-onli 172.30.33.33 2 u 176 256 7 45.814 191.341 123.242 Note the "reach" column. I log every in and outgoing ntp packet with iptables and I am sure that for every outgoing request there was a reply in the relevant time for the above sample (I was online without interruption for several hours during this time). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 User andi-nbz@firstfloor.org added comment https://bugzilla.novell.com/show_bug.cgi?id=472768#c8 --- Comment #8 from Andi N Kleen <andi-nbz@firstfloor.org> 2009-03-12 06:38:41 MST --- The new ntpd version in 11.0 seems to be a real buggy pita yes. I also really hate it when I type ntpdate it gives me a mouthful of a very complicated command line to type in instead of just doing that. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 User andreas.pfaller@gmail.com added comment https://bugzilla.novell.com/show_bug.cgi?id=472768#c9 --- Comment #9 from Andreas Pfaller <andreas.pfaller@gmail.com> 2009-03-12 06:58:03 MST --- And the output a little later (compared to comment #7) # ntpq -p remote refid st t when poll reach delay offset jitter ============================================================================== *LOCAL(0) .LOCL. 10 l 35 64 37 0.000 0.000 0.001 ptbtime2.ptb.de .PTB. 1 u 8 256 3 51.309 262.237 122.700 ntp2.inrim.it .UTCI. 1 u 29 256 3 81.220 258.448 123.224 ntp1.sth.netnod .PPS. 1 u 50 256 3 68.372 244.004 122.972 ntp1.sda.t-onli 172.30.33.33 2 u 61 256 3 46.291 237.302 122.385 Note that it seems to have lost contact with the INTERNAL HW clock during this time (in addition the yet another external reachability loss). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 User varkoly@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=472768#c10 Peter Varkoly <varkoly@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |CLOSED Resolution| |WORKSFORME --- Comment #10 from Peter Varkoly <varkoly@novell.com> 2009-03-30 15:08:22 MDT --- I can not reproduce this problem. This was realy a problem on openSUSE 11.0 but on 11.1 ntp start script do not block -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=472768 User andi-nbz@firstfloor.org added comment https://bugzilla.novell.com/show_bug.cgi?id=472768#c11 Andi N Kleen <andi-nbz@firstfloor.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|CLOSED |REOPENED Resolution|WORKSFORME | --- Comment #11 from Andi N Kleen <andi-nbz@firstfloor.org> 2009-03-30 15:12:51 MDT --- I'm pretty sure i saw it on 11.1. In fact it happened on a box that was upgraded from 11.0 to 11.1 shortly after the upgrade. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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