Re: [Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
Julian Edwards: The fixed package should be in the cloud archive. Great! When will it make it to the LTS? -- Nick Moffitt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to python-tx-tftp in Ubuntu. https://bugs.launchpad.net/bugs/116 Title: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/116/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
Re: [Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
On Wednesday 09 Oct 2013 09:49:21 you wrote: Julian Edwards: The fixed package should be in the cloud archive. Great! When will it make it to the LTS? No idea I'm afraid, I'm acting as upstream for MAAS. Andres didn't say anything about uploading it to the LTS but if there's demand it could happen. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to python-tx-tftp in Ubuntu. https://bugs.launchpad.net/bugs/116 Title: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/116/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
The fixed package should be in the cloud archive. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to python-tx-tftp in Ubuntu. https://bugs.launchpad.net/bugs/116 Title: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/116/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
I hit this today on precise. It would be great to get the fix ported to precise -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to python-tx-tftp in Ubuntu. https://bugs.launchpad.net/bugs/116 Title: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/116/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
How do we mark that this is still broken in the LTS? I can't figure out how through the drop-downs. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to python-tx-tftp in Ubuntu. https://bugs.launchpad.net/bugs/116 Title: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/116/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
** Changed in: maas Status: Triaged = Invalid -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to python-tx-tftp in Ubuntu. https://bugs.launchpad.net/bugs/116 Title: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/116/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
** Branch linked: lp:ubuntu/raring-proposed/python-tx-tftp -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to python-tx-tftp in Ubuntu. https://bugs.launchpad.net/bugs/116 Title: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/116/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
This bug was fixed in the package python-tx-tftp - 0.1~bzr31-0ubuntu8 --- python-tx-tftp (0.1~bzr31-0ubuntu8) raring; urgency=low * debian/patches/03-longer-timeouts.patch: Increase the timeout to not discard the session state because some clients are less tolerant to the provided timeouts. This solution closer matches that of tftpd-hpa. Thanks to Spads and Daviey for investigating and coming up with the solution. (LP: #116) -- Andres Rodriguez andres...@ubuntu.com Mon, 01 Apr 2013 15:19:30 -0400 ** Changed in: python-tx-tftp (Ubuntu) Status: Confirmed = Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to python-tx-tftp in Ubuntu. https://bugs.launchpad.net/bugs/116 Title: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/116/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
** Changed in: python-tx-tftp (Ubuntu) Assignee: (unassigned) = Andres Rodriguez (andreserl) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to python-tx-tftp in Ubuntu. https://bugs.launchpad.net/bugs/116 Title: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/116/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
** Changed in: maas Status: New = Triaged ** Changed in: maas Importance: Undecided = High -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to python-tx-tftp in Ubuntu. https://bugs.launchpad.net/bugs/116 Title: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/116/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
** Also affects: python-tx-tftp (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to python-tx-tftp in Ubuntu. https://bugs.launchpad.net/bugs/116 Title: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/116/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
Right, so after a day spent with Daviey and a bunch of 30MB pcap files,
we think we've figured this out.
the key exchange that failed happens here:
7418 112.051626 10.55.200.9910.55.200.1 TFTPRead Request,
File: amd64/generic/quantal/commissioning/initrd.gz, Transfer type: octet,
tsize\000=0\000, blksize\000=1408\000
7419 112.053444 10.55.200.1 10.55.200.99TFTPOption
Acknowledgement, tsize\000=18988167\000, blksize\000=1400\000
7420 113.053489 10.55.200.1 10.55.200.99TFTPOption
Acknowledgement, tsize\000=18988167\000, blksize\000=1400\000
7423 116.053542 10.55.200.1 10.55.200.99TFTPOption
Acknowledgement, tsize\000=18988167\000, blksize\000=1400\000
7425 116.832761 10.55.200.9910.55.200.1 TFTP
Acknowledgement, Block: 0
The client requests the initrd, but something in the firmware or
pxelinux itself gets hung for almost five seconds. During that time,
the maas tftpd sends three ACKs (option acknowledgements, specifically),
and times out. By the time the client sends the ACK-0 to start the data
transfer, the session state has been discarded and the tftpd just loggs
the exception as an OOPS and waits for the next session to start.
Incidentally, we spent a lot of time correlating requested/actual block
sizes for a while between this tftpd and the HPA tftpd. That turned out
to be a red herring, of course, but it seemed like a compelling lead for
a while. The solution did come from a comparision to tftpd-hpa, though.
In a few places in tftp/bootstrap.py and tftp/session.py there are
timeout tuples set to (1, 3, 7). The iterable is consumed by the
watchdog code every time a packet is sent out, and once the iterable is
empty the watchdog tells the state machine to give up on the request.
We never dug too far into the units or where in the conversation these
things are read, but the fact that there are three times in the tuple
and that the daemon gave up after three ACKs is a compelling
coïncidence.
The tftpd-hpa code tries six times, waiting one second each:
Daviey Spads: #define TIMEOUT 100 /* Default timeout (us) */
Daviey #define TRIES 6 /* Number of attempts to send each
packet */
Daviey #define TIMEOUT_LIMIT ((1 TRIES)-1)
Extending the tuple at line 346 of bootstrap.py solved this situation
for us, and the maas tftpd succeeded just as tftpd-hpa. In the end we
settled on:
class RemoteOriginReadSession(TFTPBootstrap):
Bootstraps a L{ReadSession}, that was started remotely, - we've
received
a RRQ.
timeout = (1, 1, 1, 1, 1, 1)
...as this more closely mimics what Daviey found in the tftpd-hpa
source.
This timeout tuple appears in a few places, so any adjustments to this
code should probably be made to all of the timeout iterables in
bootstrap.py and session.py.
Finally, while it's true that this seems to be a workaround for a fault
on the client side (whether the fault is in firmware or in pxelinux.0 I
can't say), I believe it is also a regression against the precise maas,
which used cobbler.
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https://bugs.launchpad.net/bugs/116
Title:
HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp
server. DL380 G6 succeeds.
To manage notifications about this bug go to:
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[Bug 1155556] Re: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds.
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: python-tx-tftp (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to python-tx-tftp in Ubuntu. https://bugs.launchpad.net/bugs/116 Title: HP ProLiant DL380 G7 tftps kernel, but initrd tracebacks in tftp server. DL380 G6 succeeds. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/116/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
