Okay, Linus has merged my second patch, and CC'd it to the stable tree.
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=52553ddffad76ccf192d4dd9ce88d5818f57f62a
So hopefully we will be all wrapped up here, soon.
** Changed in: linux
Status: Confirmed => Fix Committed
** Changed in: mythbuntu
Status: Confirmed => Fix Committed
** Description changed:
In all kernels since 2.6.39, the "irqfixup" and "irqpoll" options are no
longer taking effect.
The interrupts now generate the same errors seen without these kernel
options, e.g.:
irq 19: nobody cared (try booting with the "irqpoll" option)
even though irqpoll, or irqfixup, is used.
The Linux irq code was reworked during the 2.6.39 cycle. I have gone
through the patches, isolated two regressions, and submitted patches for
each.
The first bug effectively disabled the bad-irq handling routines, by a
test condition be accidentally reversed. This is the commit where the
regression arrives:
commit d05c65fff0 , genirq: spurious: Run only one poller at a time
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=d05c65fff0ef672be75429266751f0e015b54d94
The maintainer has accepted my patch for that, and it's on its way into
releases: it will be in Linux 3.2, and upcoming stable releases, likely
3.0.11 and 3.1.3. And it's marked as committed to Oneirc now. It's
attached here, and is in Linus' tree at:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=c75d720fca8a91ce99196d33adea383621027bf2
That bug disabled irqfixup & irqpoll for everybody. But with that
fixed, I had some machines where those kernel options still failed. I
bisected that problem to here:
commit fa27271bc , genirq: Fixup poll handling
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=fa27271bc8d230355c1f24ddea103824fdc12de6
- I've just submitted another patch, for that regression. (So far, no one
- else seeing this bug report has hit that second regression, so there may
- be no one here in a position to test it. I have found a previous post
- to LKML, from a user who bisected his problem to the same commit,
- fa2727, so I may try to contact him: https://lkml.org/lkml/2011/7/24/54
- .)
-
- At any rate, my second submission to Thomas can be watched here:
-
- https://lkml.org/lkml/2011/11/19/189
-
- And I'll report back.
+ I've submitted another patch, for that regression, and Linus merged it.
+ Yay. So 3.2 should be good, and 3.0/3.1 updates in a bit -- it took a
+ month, last time.
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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/855199
Title:
"irqfixup" and "irqpoll" broken since 2.6.39
Status in The Linux Kernel:
Fix Committed
Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
Fix Committed
Status in “linux” package in Ubuntu:
Fix Released
Status in “linux” source package in Oneiric:
Fix Committed
Status in “linux” source package in Precise:
Fix Released
Bug description:
In all kernels since 2.6.39, the "irqfixup" and "irqpoll" options are
no longer taking effect.
The interrupts now generate the same errors seen without these kernel
options, e.g.:
irq 19: nobody cared (try booting with the "irqpoll" option)
even though irqpoll, or irqfixup, is used.
The Linux irq code was reworked during the 2.6.39 cycle. I have gone
through the patches, isolated two regressions, and submitted patches
for each.
The first bug effectively disabled the bad-irq handling routines, by a
test condition be accidentally reversed. This is the commit where the
regression arrives:
commit d05c65fff0 , genirq: spurious: Run only one poller at a time
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=d05c65fff0ef672be75429266751f0e015b54d94
The maintainer has accepted my patch for that, and it's on its way
into releases: it will be in Linux 3.2, and upcoming stable releases,
likely 3.0.11 and 3.1.3. And it's marked as committed to Oneirc now.
It's attached here, and is in Linus' tree at:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=c75d720fca8a91ce99196d33adea383621027bf2
That bug disabled irqfixup & irqpoll for everybody. But with that
fixed, I had some machines where those kernel options still failed. I
bisected that problem to here:
commit fa27271bc , genirq: Fixup poll handling
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=fa27271bc8d230355c1f24ddea103824fdc12de6
I've submitted another patch, for that regression, and Linus merged
it. Yay. So 3.2 should be good, and 3.0/3.1 updates in a bit -- it
took a month, last time.
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https://bugs.launchpad.net/linux/+bug/855199/+subscriptions
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