Linking to other bugs which could be resolved by setting 'pci=realloc=off' as a
workaround:
- LP#1363313: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1363313
- LP#2032120: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2032120
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/2122171
Title:
PCI realloc failing
Status in linux package in Ubuntu:
Incomplete
Bug description:
The Ubuntu kernel is enabling PCI reallocation ("pci=realloc=on"b by
default), and this reallocation is failing on some Dell server
systems, particularly those with NVidia GPUs. When reallocation
fails, the kernel does not restore the original BIOS-assigned
resources, and the system does not function correctly.
Would it be possible to turn off kernel config option
CONFIG_PCI_REALLOC_ENABLE_AUTO? That option should only be helpful on
systems with BIOS that don't fully configure PCI devices, and it is
breaking systems that are configured correctly. Other enterprise
distros (RHEL, SLES) seem to have this disabled by default.
I can provide kernel logs or more details if needed.
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