*** This bug is a duplicate of bug 1866056 *** https://bugs.launchpad.net/bugs/1866056
** Information type changed from Private to Public -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1908414 Title: [21.04 FEAT] s390/Kconfig: default PCI_NR_FUNCTIONS to 512 Status in Ubuntu on IBM z Systems: Fix Released Status in linux package in Ubuntu: Fix Released Bug description: Summary: s390/Kconfig: default PCI_NR_FUNCTIONS to 512 Description: On machines with a large number of PCI devices, including Virtual Functions and NVMe devices it is quite common that an LPAR can see over 100 PCI functions in Standby or even wants to use as many. For affected distributions this poses a problem as any PCI function probed after the limit has been reached is simply inaccessible and invisible for older kernels this is even silent. This is solved by increasing the PCI_NR_FUNCTIONS Kconfig option to 512 matching the recommended setting in the upstream defconfig. In testing and through code study it was determined that this has only neglibile memory use overhead of a handful of 4k pages when devices are only visible in Standby. Upstream-ID: 10e59217479d733ff50b6e8c6316ecffe8b857cb kernel 5.11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1908414/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp