** Also affects: linux (Ubuntu Zesty)
Importance: Undecided
Assignee: Taco Screen team (taco-screen-team)
Status: New
** Changed in: linux (Ubuntu Zesty)
Status: New => Fix Committed
** Changed in: linux (Ubuntu Zesty)
Assignee: Taco Screen team (taco-screen-team) => Tim Gardner (timg-tpi)
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https://bugs.launchpad.net/bugs/1668382
Title:
Ubuntu (Zesty): When we miss LSI/INTx interrupts on slot, message is
too imprecise
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Zesty:
Fix Committed
Bug description:
-- Problem Description --
Some Power machines has limitations regarding INTx/Level-signaled interrupts
in some slots. The kernel will present currently the following message in dmesg:
"pci 0003:70:00.0: of_irq_parse_pci() failed with rc=-22"
This is an imprecise, and kind of "misleading" message. The following
patch improved the way this information is showed to user:
f1aa54840657 ("of/irq: improve error report on irq discovery process failure")
[https://git.kernel.org/torvalds/c/f1aa5484]
With the patch, messages will show like:
"pci 0003:70:00.0: no interrupt-map found, INTx interrupts not available"
"pci 0003:70:00.0: possibly some PCI slots don't have level triggered
interrupts capability" (<= this one shows only once, regardless the number of
slot without LSI)
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So, we want to request Canonical to include the above patch on kernel 4.10,
to Ubuntu 17.04 (Zesty), if possible.
Thanks in advance,
Guilherme
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