See https://bugs.launchpad.net/ubuntu/+source/linux-lts-
trusty/+bug/1501345
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https://bugs.launchpad.net/bugs/1397976
Title:
tty hangup regression in 3.13 kernel (trusty LTS)
To manage
Yep, me too, about 10 production systems broke because of that
regression. I had to push a special kernel on our own PPA to fix it :-/
Well, now there is a new kernel in -proposed with the additional patch
that fix that regression. That's probably the easiest now: just add the
-proposed repository
The fix made in this bug broke production systems for me. Same symptom
as in comment #4. Which bug is tracking the regression? Meanwhile, I
downgrade kernel.
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The fix pointed in comment #4 is already queued for the next kernel SRU
in Trusty git tree (master-next branch). Really soon we will have a
kernel in the -proposed pocket with this fix.
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As described in comment #4, the regression that the 'fix' introduced is
still present in 3.13.0-65.105~precise1.
Should I reopen this bug report, or create a new one to track the regression?
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This bug was fixed in the package linux-lts-trusty -
3.13.0-65.105~precise1
---
linux-lts-trusty (3.13.0-65.105~precise1) precise; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #1498291
[ Upstream Kernel Changes ]
* net: Fix skb_set_peeked use-after-free bug
This bug was fixed in the package linux-lts-trusty -
3.13.0-65.105~precise1
---
linux-lts-trusty (3.13.0-65.105~precise1) precise; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #1498291
[ Upstream Kernel Changes ]
* net: Fix skb_set_peeked use-after-free bug
This bug was fixed in the package linux - 3.13.0-65.105
---
linux (3.13.0-65.105) trusty; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #1498108
[ Upstream Kernel Changes ]
* net: Fix skb_set_peeked use-after-free bug
- LP: #1497184
linux (3.13.0-64.104)
This bug was fixed in the package linux - 3.13.0-65.105
---
linux (3.13.0-65.105) trusty; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #1498108
[ Upstream Kernel Changes ]
* net: Fix skb_set_peeked use-after-free bug
- LP: #1497184
linux (3.13.0-64.104)
Could not verify the issues noted in comment #6, but the original issue
with the pty hangup was tested and confirmed fixed on 14.04
3.13.0-64-generic.
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https://bugs.launchpad.net/bugs/1397
** Tags removed: verification-needed-trusty
** Tags added: verification-done-trusty
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Title:
tty hangup regression in 3.13 kernel (trusty LTS)
To
** Tags removed: 3.13 kernel poll timout tty
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Title:
tty hangup regression in 3.13 kernel (trusty LTS)
To manage notifications about this bug go
14.04 with kernel 3.13.0-64-generic proposed enabled I get
SerialException
>>> import serial
>>> p = serial.Serial("/dev/ttyUSB0", timeout=1)
>>> p.read()
Traceback (most recent call last):
File "", line 1, in
File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line 460, in
read
** Changed in: linux (Ubuntu Trusty)
Status: In Progress => Fix Committed
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Title:
tty hangup regression in 3.13 kernel (trusty LTS)
To ma
** Also affects: linux (Ubuntu Precise)
Importance: Undecided
Status: New
** Also affects: linux-lts-trusty (Ubuntu Precise)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Precise)
Status: New => Invalid
** Changed in: linux-lts-trusty (Ubuntu Trusty)
Patch proposed: https://lists.ubuntu.com/archives/kernel-
team/2015-September/062745.html
** Changed in: linux (Ubuntu Trusty)
Status: Fix Committed => In Progress
** Changed in: linux (Ubuntu Trusty)
Assignee: (unassigned) => Tim Gardner (timg-tpi)
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Hi,
I've just got the new -proposed kernel with that fix, and got an important
regression: it broke tty connection to my devices using FTDI chips.
I haven't fully checked yet, but I think that's because you've cherry-
picked commit eafbe67f84761d787802e5113d895a316b6292fe "n_tty: Refactor
input_
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
trusty' to 'verification-done-trusty'.
If verification is not done by 5 working days from t
** Changed in: linux (Ubuntu Trusty)
Status: In Progress => Fix Committed
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Title:
tty hangup regression in 3.13 kernel (trusty LTS)
To ma
** Package changed: linux-lts-trusty (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Status: Expired => Fix Released
** Also affects: linux-lts-trusty (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux-lts-trusty (Ubuntu)
Status: New => In Progress
** Also affects: linux-lts-trusty (Ubuntu Trusty)
Importance: Undecided
Status: New
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Title:
tty hangup regression in 3.13 kernel (trust
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu Trusty)
Status: New => Confirmed
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Title:
[Expired for linux-lts-trusty (Ubuntu) because there has been no
activity for 60 days.]
** Changed in: linux-lts-trusty (Ubuntu)
Status: Incomplete => Expired
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** Changed in: linux-lts-trusty (Ubuntu)
Status: New => Incomplete
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Title:
tty hangup regression in 3.13 kernel (trusty LTS)
To manage no
** Description changed:
From https://lkml.org/lkml/2014/10/10/345
-
#
Commit f95499c3030f ("n_tty: Don't wait for buffer work in read() loop")
- introduces a race window where a pty master can be signalled that the
ptyslave was closed before all the data that the slave wrote is
del
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