[Bug 601704] New: dhcpcd: ignores link carrier and does not retransmit - openSUSE Bugs - openSUSE Mailing Lists

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[Bug 601704] New: dhcpcd: ignores link carrier and does not retransmit

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bugzilla_noreply＠novell.com

1 May 2010 1 May '10

10:52

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c0 Summary: dhcpcd: ignores link carrier and does not retransmit Classification: openSUSE Product: openSUSE 11.2 Version: Final Platform: All OS/Version: Linux Status: NEW Severity: Major Priority: P5 - None Component: Network AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: jengelh@medozas.de QAContact: qa@suse.de Found By: Beta-Customer Blocker: --- I am observing a problem whereby an initramfs with NFS-mounting just does not seem to be able to get a DHCP lease. I tracked down the problem due to two factors: 1. some hardware has a notoriously slow PHY bringup - as much as 7 to 8 seconds have been observed with very different hardware (via-velocity.ko, e1000e.ko). 2. (In initramfs, eth0 starts out in the DOWN state.) dhcpcd brings up the interface, but does not wait for the NO-CARRIER flag to be cleared, so that dhcpcd sends the DHCPDISCOVER while the hardware is not really usable - the packet never makes it to the wire. 3. dhcpcd does, if I looked right, exactly one retry - like 4 seconds after the first. However, since the link bringup takes 7 seconds, that second DHCPDISCOVER also vanishes. Instead, dhcpcd completely times out after 120 seconds (due to -t 120 in boot-network.sh). -- Configure bugmail: http://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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1 May 1 May

13:13

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c1 --- Comment #1 from Jan Engelhardt 2010-05-01 13:13:13 UTC --- Current working setup: +#%programs: /bin/grep if [ "$nettype" = "dhcp" ]; then # run dhcp if [ "$interface" != "off" ]; then + # We need a carrier first, or DHCPDISCOVER will not get onto the wire. + # Unfortunately, dhcpcd does not wait for this by itself. + ip link set dev "$interface" up; + echo "$interface: waiting for LOWER_UP" + while ! ip -o link show dev "$interface" | grep -q LOWER_UP; do + sleep 1; + done; + echo "$interface: waiting for CARRIER" + while ip -o link show dev "$interface" | grep -q NO-CARRIER; do + sleep 1; + done; + echo "running dhcpcd on interface $interface" -- Configure bugmail: http://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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4 May 4 May

01:17

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c yang xiaoyu changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |xyyang@novell.com AssignedTo|bnc-team-screening@forge.pr |varkoly@novell.com |ovo.novell.com | -- Configure bugmail: http://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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5 May 5 May

17:45

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c2 --- Comment #2 from Jan Engelhardt 2010-05-05 17:45:42 UTC --- I did a Diff between dhcpcd-3.2.3-47.2 and -47.4: diff -dpru 472/dhcpcd-3.2.3/client.c 474/dhcpcd-3.2.3/client.c --- 472/dhcpcd-3.2.3/client.c 2010-05-05 19:15:22.014111336 +0200 +++ 474/dhcpcd-3.2.3/client.c 2010-05-05 18:37:04.000000000 +0200 @@ -531,7 +531,10 @@ static int wait_for_packet (struct pollf if (iface->fd == -1) timeout = (int) state->timeout; else { - timeout = TIMEOUT_MINI; + if( ! timeout ) + timeout = TIMEOUT_MINI; + else + timeout *= 2; if (state->timeout < timeout) timeout = (int) state->timeout; } diff -dpru 472/dhcpcd.spec 474/dhcpcd.spec --- 472/dhcpcd.spec 2009-10-24 05:08:25.000000000 +0200 +++ 474/dhcpcd.spec 2010-05-05 18:37:21.000000000 +0200 @@ -97,6 +115,27 @@ perl -i -pe 's/^(DHCLIENT_ADDITIONAL_OPT rm -rf $RPM_BUILD_ROOT %changelog +... +* Fri Nov 27 2009 varkoly@suse.de +- bnc#552916 - dhcp client swamps network with dhcp requests although + ip already obtained +... Peter, you broke retransmission for when the client does not have an IP address yet. Your multiplication by 2 is in the wrong place, leading to timeout=state->timeout being done, bringing the timeout to a ridiculous 117-something seconds. Attaching patch to fix this. -- Configure bugmail: http://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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18:02

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c3 --- Comment #3 from Jan Engelhardt 2010-05-05 18:02:29 UTC --- Created an attachment (id=359738) --> (http://bugzilla.novell.com/attachment.cgi?id=359738) patch -- Configure bugmail: http://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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3 Jun 3 Jun

20:19

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c4 Robert Larkin changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rlarkin@sgi.com --- Comment #4 from Robert Larkin 2010-06-03 20:19:35 UTC --- Was affected by this bug with tg3 and worked around by copying over an older binary. This morning nfs booted several times on same system with dhcpcd-3.2.3-44.16.17 from the sp1 gm without issue. -- Configure bugmail: http://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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3 Aug 3 Aug

10:48

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c5 Peter Varkoly changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |CLOSED Resolution| |FIXED --- Comment #5 from Peter Varkoly 2010-08-03 10:48:39 UTC --- this problem is fixed on SLES11-SP1 and Factory too. -- Configure bugmail: http://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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11:22

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c6 --- Comment #6 from Jan Engelhardt 2010-08-03 11:22:58 UTC --- I think 11.2 and 11.3 should also get an update. -- Configure bugmail: http://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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4 Aug 4 Aug

09:33

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c7 Jan Engelhardt changed: What |Removed |Added ---------------------------------------------------------------------------- Status|CLOSED |REOPENED CC| |aj@novell.com Resolution|FIXED | --- Comment #7 from Jan Engelhardt 2010-08-04 09:33:25 UTC --- I think 11.2 and 11.3 should also get an update. -- Configure bugmail: http://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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bugzilla_noreply＠novell.com

11:48

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c8 Peter Varkoly changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |CLOSED Resolution| |FIXED --- Comment #8 from Peter Varkoly 2010-08-04 11:48:32 UTC --- dhcpcd was not changed but linuxrc calls dhcpcd with "-t 60" -- Configure bugmail: http://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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11:59

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c9 Jan Engelhardt changed: What |Removed |Added ---------------------------------------------------------------------------- Status|CLOSED |REOPENED Resolution|FIXED | --- Comment #9 from Jan Engelhardt 2010-08-04 11:59:28 UTC --- This has nothing to do with linuxrc. The presented problem exists with dhcpcd itself (resp. your patch), not the way it's called. -- Configure bugmail: http://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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12:19

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c10 Peter Varkoly changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |CLOSED Resolution| |WONTFIX --- Comment #10 from Peter Varkoly 2010-08-04 12:19:18 UTC --- Yes but this makes only problem if the timeout is to short. -t 60 solves the problem if in linuxrc or in working system i.a.s. -- Configure bugmail: http://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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12:26

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c11 Jan Engelhardt changed: What |Removed |Added ---------------------------------------------------------------------------- Status|CLOSED |REOPENED Resolution|WONTFIX | --- Comment #11 from Jan Engelhardt 2010-08-04 12:26:52 UTC --- I think you completely miss the point. Your patch copies "state->timeout" (which seems to be what was specified for the -t argument) to "timeout" (which is the remaining time until the next retransmit). -- Configure bugmail: http://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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12 Aug 12 Aug

15:52

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c12 Peter Varkoly changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |CLOSED Resolution| |FIXED --- Comment #12 from Peter Varkoly 2010-08-12 15:52:56 UTC --- Sorry I've not detected that this bug was not fixed for 11.2. Now I've done it. osc://home:varkoly:branches:openSUSE:11.2:Update:Test/dhcpcd -- Configure bugmail: http://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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18:30

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

http://bugzilla.novell.com/show_bug.cgi?id=601704 http://bugzilla.novell.com/show_bug.cgi?id=601704#c13 --- Comment #13 from Jan Engelhardt 2010-08-12 18:30:40 UTC --- I compared the two packages, and it is the new bnc#564441.diff which resolves the issue too. You are not authorized to access bug #564441. That sucks, though. -- Configure bugmail: http://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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13 Apr 13 Apr

13:34

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

https://bugzilla.novell.com/show_bug.cgi?id=601704 https://bugzilla.novell.com/show_bug.cgi?id=601704#c14 Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard| |maint:released:11.2:40102 --- Comment #14 from Swamp Workflow Management 2011-04-13 13:34:39 UTC --- Update released for: dhcpcd, dhcpcd-debuginfo, dhcpcd-debugsource Products: openSUSE 11.2 (debug, i586, x86_64) -- 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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28 Apr 28 Apr

11:49

New subject: [Bug 601704] dhcpcd: ignores link carrier and does not retransmit

https://bugzilla.novell.com/show_bug.cgi?id=601704 https://bugzilla.novell.com/show_bug.cgi?id=601704#c15 --- Comment #15 from Bernhard Wiedemann 2011-04-28 13:49:13 CEST --- This is an autogenerated message for OBS integration: This bug (601704) was mentioned in https://build.opensuse.org/request/show/66414 -- 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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