[Touch-packages] [Bug 2026757] Re: dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

2023-10-04 Thread yatin
@Sergio so i still see[1][2] those segfaults with those new packages:-
ii  dnsmasq-base  2.86-1.1ubuntu0.4~ppa1
 amd64Small caching DNS proxy and DHCP/TFTP server
ii  dnsmasq-utils 2.86-1.1ubuntu0.4~ppa1
 amd64Utilities for manipulating DHCP leases

Can you check if that patch is really applied on those packages?

[1] 
https://dcd105b404f93fc08fa3-82141499a48343cfb1270dc186f5ec2f.ssl.cf5.rackcdn.com/897277/1/check/ironic-standalone/1d6d1a0/controller/logs/syslog.txt
[2] 
Oct 04 06:53:17 np0035409761 kernel: dnsmasq[67022]: segfault at 80c8 ip 
7f4ef40ce3fe sp 7fff2346dab0 error 4 in libc.so.6[7f4ef4051000+195000]
Oct 04 06:53:17 np0035409761 kernel: Code: 99 13 00 e8 04 b9 ff ff 0f 1f 40 00 
f3 0f 1e fa 48 85 ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 
12 3a 17 00 <48> 8b 47 f8 64 8b 2b a8 02 75 57 48 8b 15 98 39 17 00 64 48 83 3a
Oct 04 06:53:53 np0035409761 kernel: dnsmasq[77967]: segfault at d118 ip 
7f31c3b403fe sp 7ffe7ed6cc40 error 4 in libc.so.6[7f31c3ac3000+195000]

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Title:
  dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

Status in Ironic:
  New
Status in neutron:
  New
Status in dnsmasq package in Ubuntu:
  Invalid
Status in dnsmasq source package in Jammy:
  Incomplete
Status in dnsmasq source package in Kinetic:
  Won't Fix
Status in dnsmasq source package in Lunar:
  Invalid
Status in dnsmasq source package in Mantic:
  Invalid

Bug description:
  The Ironic project's CI has been having major blocking issues moving
  to utilizing Ubuntu Jammy and with some investigation we were able to
  isolate the issues down to the dhcp updates causing dnsmasq to crash
  on Ubuntu Jammy, which ships with dnsmasq 2.86. This issue sounds
  similar to an issue known about to the dnsmasq maintainers, where
  dnsmasq would crash with updates occurring due to configuration
  refresh[0].

  This resulted in us upgrading dnsmasq to the version which ships with
  Ubuntu Lunar.

  Which was no better. Dnsmasq still crashed upon record updates for
  addresses and ports getting configuration added/changed/removed.

  We later downgraded to the version of dnsmasq shipped in Ubuntu Focal,
  and dnsmasq stopped crashing and appeared stable enough to utilize for
  CI purposes.

  ** Kernel log from Ubuntu Jammy Package **

  [229798.876726] dnsmasq[81586]: segfault at 7c28 ip 7f6e8313147e sp 
7fffb3d6f830 error 4 in libc.so.6[7f6e830b4000+195000]
  [229798.876745] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [229805.444912] dnsmasq[401428]: segfault at dce8 ip 7fe63bf6a47e sp 
7ffdb105b440 error 4 in libc.so.6[7fe63beed000+195000]
  [229805.444933] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230414.213448] dnsmasq[401538]: segfault at 78b8 ip 7f12160e447e sp 
7ffed6ef2190 error 4 in libc.so.6[7f1216067000+195000]
  [230414.213467] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230465.098989] dnsmasq[402665]: segfault at c378 ip 7f81458f047e sp 
7fff0db334a0 error 4 in libc.so.6[7f8145873000+195000]
  [230465.099005] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231787.247374] dnsmasq[402863]: segfault at 7318 ip 7f3940b9147e sp 
7ffc8df4f010 error 4 in libc.so.6[7f3940b14000+195000]
  [231787.247392] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231844.886399] dnsmasq[405182]: segfault at dc58 ip 7f32a29e147e sp 
7ffddedd7480 error 4 in libc.so.6[7f32a2964000+195000]
  [231844.886420] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [234692.482154] dnsmasq[405289]: segfault at 67d8 ip 7fab0c5c447e sp 
7fffd6fd8fa0 error 4 in libc.so.6[7fab0c547000+195000]
  [234692.482173] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 

[Touch-packages] [Bug 2026757] Re: dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

2023-10-04 Thread yatin
Thanks @Sergio, i missed those ppa links earlier, pushed test patch[1]
to validate it.

[1] https://review.opendev.org/c/openstack/ironic/+/897277

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Title:
  dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

Status in Ironic:
  New
Status in neutron:
  New
Status in dnsmasq package in Ubuntu:
  Invalid
Status in dnsmasq source package in Jammy:
  Incomplete
Status in dnsmasq source package in Kinetic:
  Won't Fix
Status in dnsmasq source package in Lunar:
  Invalid
Status in dnsmasq source package in Mantic:
  Invalid

Bug description:
  The Ironic project's CI has been having major blocking issues moving
  to utilizing Ubuntu Jammy and with some investigation we were able to
  isolate the issues down to the dhcp updates causing dnsmasq to crash
  on Ubuntu Jammy, which ships with dnsmasq 2.86. This issue sounds
  similar to an issue known about to the dnsmasq maintainers, where
  dnsmasq would crash with updates occurring due to configuration
  refresh[0].

  This resulted in us upgrading dnsmasq to the version which ships with
  Ubuntu Lunar.

  Which was no better. Dnsmasq still crashed upon record updates for
  addresses and ports getting configuration added/changed/removed.

  We later downgraded to the version of dnsmasq shipped in Ubuntu Focal,
  and dnsmasq stopped crashing and appeared stable enough to utilize for
  CI purposes.

  ** Kernel log from Ubuntu Jammy Package **

  [229798.876726] dnsmasq[81586]: segfault at 7c28 ip 7f6e8313147e sp 
7fffb3d6f830 error 4 in libc.so.6[7f6e830b4000+195000]
  [229798.876745] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [229805.444912] dnsmasq[401428]: segfault at dce8 ip 7fe63bf6a47e sp 
7ffdb105b440 error 4 in libc.so.6[7fe63beed000+195000]
  [229805.444933] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230414.213448] dnsmasq[401538]: segfault at 78b8 ip 7f12160e447e sp 
7ffed6ef2190 error 4 in libc.so.6[7f1216067000+195000]
  [230414.213467] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230465.098989] dnsmasq[402665]: segfault at c378 ip 7f81458f047e sp 
7fff0db334a0 error 4 in libc.so.6[7f8145873000+195000]
  [230465.099005] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231787.247374] dnsmasq[402863]: segfault at 7318 ip 7f3940b9147e sp 
7ffc8df4f010 error 4 in libc.so.6[7f3940b14000+195000]
  [231787.247392] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231844.886399] dnsmasq[405182]: segfault at dc58 ip 7f32a29e147e sp 
7ffddedd7480 error 4 in libc.so.6[7f32a2964000+195000]
  [231844.886420] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [234692.482154] dnsmasq[405289]: segfault at 67d8 ip 7fab0c5c447e sp 
7fffd6fd8fa0 error 4 in libc.so.6[7fab0c547000+195000]
  [234692.482173] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a

  ** Kernel log entries from Ubuntu Lunar package **

  [234724.842339] dnsmasq[409843]: segfault at fffd ip 
7f35a147647e sp 7ffd536038c0 error 5 in libc.so.6[7f35a13f9000+195000]
  [234724.842368] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [234784.918116] dnsmasq[410019]: segfault at fffd ip 
7f634233947e sp 7fff33877f20 error 5 in libc.so.6[7f63422bc000+195000]
  [234784.918133] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [235022.163339] dnsmasq[410151]: segfault at fffd ip 
7f21dd37f47e sp 7fff9bf416d0 error 5 in 

[Touch-packages] [Bug 2026757] Re: dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

2023-07-27 Thread yatin
** Changed in: dnsmasq (Ubuntu Jammy)
   Status: New => Confirmed

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https://bugs.launchpad.net/bugs/2026757

Title:
  dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

Status in Ironic:
  New
Status in neutron:
  New
Status in dnsmasq package in Ubuntu:
  Confirmed
Status in dnsmasq source package in Jammy:
  Confirmed
Status in dnsmasq source package in Kinetic:
  Won't Fix
Status in dnsmasq source package in Lunar:
  New
Status in dnsmasq source package in Mantic:
  Confirmed

Bug description:
  The Ironic project's CI has been having major blocking issues moving
  to utilizing Ubuntu Jammy and with some investigation we were able to
  isolate the issues down to the dhcp updates causing dnsmasq to crash
  on Ubuntu Jammy, which ships with dnsmasq 2.86. This issue sounds
  similar to an issue known about to the dnsmasq maintainers, where
  dnsmasq would crash with updates occurring due to configuration
  refresh[0].

  This resulted in us upgrading dnsmasq to the version which ships with
  Ubuntu Lunar.

  Which was no better. Dnsmasq still crashed upon record updates for
  addresses and ports getting configuration added/changed/removed.

  We later downgraded to the version of dnsmasq shipped in Ubuntu Focal,
  and dnsmasq stopped crashing and appeared stable enough to utilize for
  CI purposes.

  ** Kernel log from Ubuntu Jammy Package **

  [229798.876726] dnsmasq[81586]: segfault at 7c28 ip 7f6e8313147e sp 
7fffb3d6f830 error 4 in libc.so.6[7f6e830b4000+195000]
  [229798.876745] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [229805.444912] dnsmasq[401428]: segfault at dce8 ip 7fe63bf6a47e sp 
7ffdb105b440 error 4 in libc.so.6[7fe63beed000+195000]
  [229805.444933] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230414.213448] dnsmasq[401538]: segfault at 78b8 ip 7f12160e447e sp 
7ffed6ef2190 error 4 in libc.so.6[7f1216067000+195000]
  [230414.213467] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230465.098989] dnsmasq[402665]: segfault at c378 ip 7f81458f047e sp 
7fff0db334a0 error 4 in libc.so.6[7f8145873000+195000]
  [230465.099005] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231787.247374] dnsmasq[402863]: segfault at 7318 ip 7f3940b9147e sp 
7ffc8df4f010 error 4 in libc.so.6[7f3940b14000+195000]
  [231787.247392] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231844.886399] dnsmasq[405182]: segfault at dc58 ip 7f32a29e147e sp 
7ffddedd7480 error 4 in libc.so.6[7f32a2964000+195000]
  [231844.886420] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [234692.482154] dnsmasq[405289]: segfault at 67d8 ip 7fab0c5c447e sp 
7fffd6fd8fa0 error 4 in libc.so.6[7fab0c547000+195000]
  [234692.482173] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a

  ** Kernel log entries from Ubuntu Lunar package **

  [234724.842339] dnsmasq[409843]: segfault at fffd ip 
7f35a147647e sp 7ffd536038c0 error 5 in libc.so.6[7f35a13f9000+195000]
  [234724.842368] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [234784.918116] dnsmasq[410019]: segfault at fffd ip 
7f634233947e sp 7fff33877f20 error 5 in libc.so.6[7f63422bc000+195000]
  [234784.918133] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [235022.163339] dnsmasq[410151]: segfault at fffd ip 
7f21dd37f47e sp 7fff9bf416d0 error 5 in libc.so.6[7f21dd302000+195000]
  [235022.163362] Code: 98 13 00 e8 04 b9 ff ff 0f 

[Touch-packages] [Bug 2026757] Re: dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

2023-07-27 Thread yatin
@sergiodj hi
<< 1) Does the segfault happen with the dnsmasq package from Lunar/Mantic? I 
see tasks for both systems added to this bug (and the Mantic one is set as 
Confirmed), but it's not clear from the messages above whether the failure 
really happens there.

I am not aware about any segfaults with dnsmasq packages in lunar/Mantic. The 
issue in Ubuntu jammy is clear with the version included, so a fix needs to be 
included for jammy
There were some segfaults seen when using lunar packages in jammy but i think 
that could be due to other issues, so unless and until we see issues with lunar 
packages in lunar node we could rule out this.
The bug seems to be confirmed by the bot and Mantic seems to be default tracker 
so that got updated

<< 2) Assuming that the segfault does *not* happen in Lunar/Mantic, I can 
prepare a PPA with the backported patch from upstream and ask you to test it.
Sounds good to me to have backport of the fix in Ubuntu Jammy

<< 3) If the failure *does* happen in Lunar/Mantic, we will need to investigate 
it further.
Unless and Until someone confirms the issue with the version included in 
Lunar/Mantic it we can avoid any updates in Lunar/Mantic

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You received this bug notification because you are a member of Ubuntu
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Title:
  dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

Status in Ironic:
  New
Status in neutron:
  New
Status in dnsmasq package in Ubuntu:
  Confirmed
Status in dnsmasq source package in Jammy:
  Confirmed
Status in dnsmasq source package in Kinetic:
  Won't Fix
Status in dnsmasq source package in Lunar:
  New
Status in dnsmasq source package in Mantic:
  Confirmed

Bug description:
  The Ironic project's CI has been having major blocking issues moving
  to utilizing Ubuntu Jammy and with some investigation we were able to
  isolate the issues down to the dhcp updates causing dnsmasq to crash
  on Ubuntu Jammy, which ships with dnsmasq 2.86. This issue sounds
  similar to an issue known about to the dnsmasq maintainers, where
  dnsmasq would crash with updates occurring due to configuration
  refresh[0].

  This resulted in us upgrading dnsmasq to the version which ships with
  Ubuntu Lunar.

  Which was no better. Dnsmasq still crashed upon record updates for
  addresses and ports getting configuration added/changed/removed.

  We later downgraded to the version of dnsmasq shipped in Ubuntu Focal,
  and dnsmasq stopped crashing and appeared stable enough to utilize for
  CI purposes.

  ** Kernel log from Ubuntu Jammy Package **

  [229798.876726] dnsmasq[81586]: segfault at 7c28 ip 7f6e8313147e sp 
7fffb3d6f830 error 4 in libc.so.6[7f6e830b4000+195000]
  [229798.876745] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [229805.444912] dnsmasq[401428]: segfault at dce8 ip 7fe63bf6a47e sp 
7ffdb105b440 error 4 in libc.so.6[7fe63beed000+195000]
  [229805.444933] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230414.213448] dnsmasq[401538]: segfault at 78b8 ip 7f12160e447e sp 
7ffed6ef2190 error 4 in libc.so.6[7f1216067000+195000]
  [230414.213467] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230465.098989] dnsmasq[402665]: segfault at c378 ip 7f81458f047e sp 
7fff0db334a0 error 4 in libc.so.6[7f8145873000+195000]
  [230465.099005] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231787.247374] dnsmasq[402863]: segfault at 7318 ip 7f3940b9147e sp 
7ffc8df4f010 error 4 in libc.so.6[7f3940b14000+195000]
  [231787.247392] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231844.886399] dnsmasq[405182]: segfault at dc58 ip 7f32a29e147e sp 
7ffddedd7480 error 4 in libc.so.6[7f32a2964000+195000]
  [231844.886420] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [234692.482154] dnsmasq[405289]: segfault at 67d8 ip 7fab0c5c447e sp 
7fffd6fd8fa0 error 4 in libc.so.6[7fab0c547000+195000]
  [234692.482173] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 

[Touch-packages] [Bug 2026757] Re: dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

2023-07-25 Thread yatin
<< Will update and remove DNM from the test patch in ironic to use upstream 
source 2.87.
Proposed https://review.opendev.org/c/openstack/ironic/+/888121

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Title:
  dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

Status in Ironic:
  New
Status in neutron:
  New
Status in dnsmasq package in Ubuntu:
  Confirmed
Status in dnsmasq source package in Jammy:
  New
Status in dnsmasq source package in Kinetic:
  New
Status in dnsmasq source package in Lunar:
  New
Status in dnsmasq source package in Mantic:
  Confirmed

Bug description:
  The Ironic project's CI has been having major blocking issues moving
  to utilizing Ubuntu Jammy and with some investigation we were able to
  isolate the issues down to the dhcp updates causing dnsmasq to crash
  on Ubuntu Jammy, which ships with dnsmasq 2.86. This issue sounds
  similar to an issue known about to the dnsmasq maintainers, where
  dnsmasq would crash with updates occurring due to configuration
  refresh[0].

  This resulted in us upgrading dnsmasq to the version which ships with
  Ubuntu Lunar.

  Which was no better. Dnsmasq still crashed upon record updates for
  addresses and ports getting configuration added/changed/removed.

  We later downgraded to the version of dnsmasq shipped in Ubuntu Focal,
  and dnsmasq stopped crashing and appeared stable enough to utilize for
  CI purposes.

  ** Kernel log from Ubuntu Jammy Package **

  [229798.876726] dnsmasq[81586]: segfault at 7c28 ip 7f6e8313147e sp 
7fffb3d6f830 error 4 in libc.so.6[7f6e830b4000+195000]
  [229798.876745] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [229805.444912] dnsmasq[401428]: segfault at dce8 ip 7fe63bf6a47e sp 
7ffdb105b440 error 4 in libc.so.6[7fe63beed000+195000]
  [229805.444933] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230414.213448] dnsmasq[401538]: segfault at 78b8 ip 7f12160e447e sp 
7ffed6ef2190 error 4 in libc.so.6[7f1216067000+195000]
  [230414.213467] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230465.098989] dnsmasq[402665]: segfault at c378 ip 7f81458f047e sp 
7fff0db334a0 error 4 in libc.so.6[7f8145873000+195000]
  [230465.099005] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231787.247374] dnsmasq[402863]: segfault at 7318 ip 7f3940b9147e sp 
7ffc8df4f010 error 4 in libc.so.6[7f3940b14000+195000]
  [231787.247392] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231844.886399] dnsmasq[405182]: segfault at dc58 ip 7f32a29e147e sp 
7ffddedd7480 error 4 in libc.so.6[7f32a2964000+195000]
  [231844.886420] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [234692.482154] dnsmasq[405289]: segfault at 67d8 ip 7fab0c5c447e sp 
7fffd6fd8fa0 error 4 in libc.so.6[7fab0c547000+195000]
  [234692.482173] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a

  ** Kernel log entries from Ubuntu Lunar package **

  [234724.842339] dnsmasq[409843]: segfault at fffd ip 
7f35a147647e sp 7ffd536038c0 error 5 in libc.so.6[7f35a13f9000+195000]
  [234724.842368] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [234784.918116] dnsmasq[410019]: segfault at fffd ip 
7f634233947e sp 7fff33877f20 error 5 in libc.so.6[7f63422bc000+195000]
  [234784.918133] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [235022.163339] dnsmasq[410151]: segfault at fffd ip 
7f21dd37f47e sp 7fff9bf416d0 error 5 in 

[Touch-packages] [Bug 2026757] Re: dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

2023-07-25 Thread yatin
<< For neutron i will send a patch to add a sanity check to warn users running 
2.86 version about this issue.
Pushed https://review.opendev.org/c/openstack/neutron/+/889015?usp=search

@Julia, thanks for checking those failures and reporting 2028279. Will
update and remove DNM from the test patch in ironic to use upstream
source 2.87.

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/2026757

Title:
  dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

Status in Ironic:
  New
Status in neutron:
  New
Status in dnsmasq package in Ubuntu:
  Confirmed
Status in dnsmasq source package in Jammy:
  New
Status in dnsmasq source package in Kinetic:
  New
Status in dnsmasq source package in Lunar:
  New
Status in dnsmasq source package in Mantic:
  Confirmed

Bug description:
  The Ironic project's CI has been having major blocking issues moving
  to utilizing Ubuntu Jammy and with some investigation we were able to
  isolate the issues down to the dhcp updates causing dnsmasq to crash
  on Ubuntu Jammy, which ships with dnsmasq 2.86. This issue sounds
  similar to an issue known about to the dnsmasq maintainers, where
  dnsmasq would crash with updates occurring due to configuration
  refresh[0].

  This resulted in us upgrading dnsmasq to the version which ships with
  Ubuntu Lunar.

  Which was no better. Dnsmasq still crashed upon record updates for
  addresses and ports getting configuration added/changed/removed.

  We later downgraded to the version of dnsmasq shipped in Ubuntu Focal,
  and dnsmasq stopped crashing and appeared stable enough to utilize for
  CI purposes.

  ** Kernel log from Ubuntu Jammy Package **

  [229798.876726] dnsmasq[81586]: segfault at 7c28 ip 7f6e8313147e sp 
7fffb3d6f830 error 4 in libc.so.6[7f6e830b4000+195000]
  [229798.876745] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [229805.444912] dnsmasq[401428]: segfault at dce8 ip 7fe63bf6a47e sp 
7ffdb105b440 error 4 in libc.so.6[7fe63beed000+195000]
  [229805.444933] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230414.213448] dnsmasq[401538]: segfault at 78b8 ip 7f12160e447e sp 
7ffed6ef2190 error 4 in libc.so.6[7f1216067000+195000]
  [230414.213467] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230465.098989] dnsmasq[402665]: segfault at c378 ip 7f81458f047e sp 
7fff0db334a0 error 4 in libc.so.6[7f8145873000+195000]
  [230465.099005] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231787.247374] dnsmasq[402863]: segfault at 7318 ip 7f3940b9147e sp 
7ffc8df4f010 error 4 in libc.so.6[7f3940b14000+195000]
  [231787.247392] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231844.886399] dnsmasq[405182]: segfault at dc58 ip 7f32a29e147e sp 
7ffddedd7480 error 4 in libc.so.6[7f32a2964000+195000]
  [231844.886420] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [234692.482154] dnsmasq[405289]: segfault at 67d8 ip 7fab0c5c447e sp 
7fffd6fd8fa0 error 4 in libc.so.6[7fab0c547000+195000]
  [234692.482173] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a

  ** Kernel log entries from Ubuntu Lunar package **

  [234724.842339] dnsmasq[409843]: segfault at fffd ip 
7f35a147647e sp 7ffd536038c0 error 5 in libc.so.6[7f35a13f9000+195000]
  [234724.842368] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [234784.918116] dnsmasq[410019]: segfault at fffd ip 
7f634233947e sp 7fff33877f20 error 5 in libc.so.6[7f63422bc000+195000]
  [234784.918133] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 

[Touch-packages] [Bug 2026757] Re: dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

2023-07-20 Thread yatin
<<< So, the failure appears to be rooted in ipxe failing to get the
complete set of data from the server. My guess is that is something to
do with spanning tree as iPXE for ubuntu has also changed it's behavior.
My feeling is this is rooted with some spanning tree behavior, which we
merged a patch after your last recheck to disable. I've re-rechecked
your test patch to hopefully provide us an additional data point.

Thanks Julia even with spanning tree fixes, i still seen some failures
in test patch. It could be some other issue though.

wrt segfaults, I validated this even with 2.89 + source install[1] and
didn't see any segfault with it. May be the segfault that you noticed
with Lunar dnsmasq-2.89 on jammy is due to using packages built for
lunar used in jammy but not specific to dnsmasq itself. I triggered the
jobs again to see if segfaults are seen.

Based on this i think would be to good to get Ubuntu jammy and kinetic
to be updated to 2.87 or just backport the required fix
https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=d290630d31f4517ab26392d00753d1397f9a4114.

I could see similar segfault in neutron-linuxbridge and openvswitch
jobs[4][5], reported once in syslog but didn't saw any failure due to
these. But as you said issue is seen with some specific tests in ironic.

For neutron i will send a patch to add a sanity check to warn users
running 2.86 version about this issue.

[1] https://review.opendev.org/c/openstack/ironic/+/888984
[2] 
https://9d1e095f1746de4d26ae-cb25c10c29ca7bf26ff09ad92a16fa62.ssl.cf1.rackcdn.com/888984/1/check/ironic-standalone/7debc89/controller/logs/syslog.txt
[3] 
https://c38d0c9156ee6cc9fd3b-d97b0a3b599d6de6d0673faefd2f08b5.ssl.cf1.rackcdn.com/888984/1/check/ironic-standalone-redfish/1cafda9/controller/logs/syslog.txt
[4] 
https://5d62e00bab1ce95c0ca0-ea10db30e23f6b883afe49ff4b1074ff.ssl.cf2.rackcdn.com/periodic/opendev.org/openstack/neutron/master/neutron-tempest-plugin-linuxbridge/1279e73/controller/logs/syslog.txt
[5] 
https://storage.gra.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_ecb/859871/12/gate/neutron-tempest-plugin-openvswitch/ecbfc37/controller/logs/syslog.txt

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https://bugs.launchpad.net/bugs/2026757

Title:
  dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

Status in Ironic:
  New
Status in neutron:
  New
Status in dnsmasq package in Ubuntu:
  Confirmed

Bug description:
  The Ironic project's CI has been having major blocking issues moving
  to utilizing Ubuntu Jammy and with some investigation we were able to
  isolate the issues down to the dhcp updates causing dnsmasq to crash
  on Ubuntu Jammy, which ships with dnsmasq 2.86. This issue sounds
  similar to an issue known about to the dnsmasq maintainers, where
  dnsmasq would crash with updates occurring due to configuration
  refresh[0].

  This resulted in us upgrading dnsmasq to the version which ships with
  Ubuntu Lunar.

  Which was no better. Dnsmasq still crashed upon record updates for
  addresses and ports getting configuration added/changed/removed.

  We later downgraded to the version of dnsmasq shipped in Ubuntu Focal,
  and dnsmasq stopped crashing and appeared stable enough to utilize for
  CI purposes.

  ** Kernel log from Ubuntu Jammy Package **

  [229798.876726] dnsmasq[81586]: segfault at 7c28 ip 7f6e8313147e sp 
7fffb3d6f830 error 4 in libc.so.6[7f6e830b4000+195000]
  [229798.876745] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [229805.444912] dnsmasq[401428]: segfault at dce8 ip 7fe63bf6a47e sp 
7ffdb105b440 error 4 in libc.so.6[7fe63beed000+195000]
  [229805.444933] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230414.213448] dnsmasq[401538]: segfault at 78b8 ip 7f12160e447e sp 
7ffed6ef2190 error 4 in libc.so.6[7f1216067000+195000]
  [230414.213467] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230465.098989] dnsmasq[402665]: segfault at c378 ip 7f81458f047e sp 
7fff0db334a0 error 4 in libc.so.6[7f8145873000+195000]
  [230465.099005] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231787.247374] dnsmasq[402863]: segfault at 7318 ip 7f3940b9147e sp 
7ffc8df4f010 error 4 in libc.so.6[7f3940b14000+195000]
  [231787.247392] 

[Touch-packages] [Bug 2026757] Re: dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

2023-07-13 Thread yatin
I tried to setup dnsmasq-2.87 with
https://review.opendev.org/c/openstack/ironic/+/888121 by using source
install and avoiding newer package from lunar, still sometime some of
tests fails but i no longer see any segfault for dnsmasq with it. May be
someone from ironic Team could check and see if it's related to dnsmasq
or some other known issue.

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https://bugs.launchpad.net/bugs/2026757

Title:
  dnsmasq on Ubuntu Jammy/Lunar crashes on neutron-dhcp-agent updates

Status in Ironic:
  New
Status in neutron:
  New
Status in dnsmasq package in Ubuntu:
  Confirmed

Bug description:
  The Ironic project's CI has been having major blocking issues moving
  to utilizing Ubuntu Jammy and with some investigation we were able to
  isolate the issues down to the dhcp updates causing dnsmasq to crash
  on Ubuntu Jammy, which ships with dnsmasq 2.86. This issue sounds
  similar to an issue known about to the dnsmasq maintainers, where
  dnsmasq would crash with updates occurring due to configuration
  refresh[0].

  This resulted in us upgrading dnsmasq to the version which ships with
  Ubuntu Lunar.

  Which was no better. Dnsmasq still crashed upon record updates for
  addresses and ports getting configuration added/changed/removed.

  We later downgraded to the version of dnsmasq shipped in Ubuntu Focal,
  and dnsmasq stopped crashing and appeared stable enough to utilize for
  CI purposes.

  ** Kernel log from Ubuntu Jammy Package **

  [229798.876726] dnsmasq[81586]: segfault at 7c28 ip 7f6e8313147e sp 
7fffb3d6f830 error 4 in libc.so.6[7f6e830b4000+195000]
  [229798.876745] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [229805.444912] dnsmasq[401428]: segfault at dce8 ip 7fe63bf6a47e sp 
7ffdb105b440 error 4 in libc.so.6[7fe63beed000+195000]
  [229805.444933] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230414.213448] dnsmasq[401538]: segfault at 78b8 ip 7f12160e447e sp 
7ffed6ef2190 error 4 in libc.so.6[7f1216067000+195000]
  [230414.213467] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [230465.098989] dnsmasq[402665]: segfault at c378 ip 7f81458f047e sp 
7fff0db334a0 error 4 in libc.so.6[7f8145873000+195000]
  [230465.099005] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231787.247374] dnsmasq[402863]: segfault at 7318 ip 7f3940b9147e sp 
7ffc8df4f010 error 4 in libc.so.6[7f3940b14000+195000]
  [231787.247392] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [231844.886399] dnsmasq[405182]: segfault at dc58 ip 7f32a29e147e sp 
7ffddedd7480 error 4 in libc.so.6[7f32a2964000+195000]
  [231844.886420] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [234692.482154] dnsmasq[405289]: segfault at 67d8 ip 7fab0c5c447e sp 
7fffd6fd8fa0 error 4 in libc.so.6[7fab0c547000+195000]
  [234692.482173] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a

  ** Kernel log entries from Ubuntu Lunar package **

  [234724.842339] dnsmasq[409843]: segfault at fffd ip 
7f35a147647e sp 7ffd536038c0 error 5 in libc.so.6[7f35a13f9000+195000]
  [234724.842368] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [234784.918116] dnsmasq[410019]: segfault at fffd ip 
7f634233947e sp 7fff33877f20 error 5 in libc.so.6[7f63422bc000+195000]
  [234784.918133] Code: 98 13 00 e8 04 b9 ff ff 0f 1f 40 00 f3 0f 1e fa 48 85 
ff 0f 84 bb 00 00 00 55 48 8d 77 f0 53 48 83 ec 18 48 8b 1d 92 39 17 00 <48> 8b 
47 f8 64 8b 2b a8 02 75 57 48 8b 15 18 39 17 00 64 48 83 3a
  [235022.163339] dnsmasq[410151]: segfault at fffd ip 
7f21dd37f47e sp 7fff9bf416d0 error 5 in