| Message ID | 20181126082206.9057-1-acelan.kao@canonical.com |
|---|---|
| Headers | show |
| Series | iwlwifi fails to work on 16 or more | expand |
> On Nov 26, 2018, at 4:22 PM, AceLan Kao <acelan.kao@canonical.com> wrote: > > BugLink: https://bugs.launchpad.net/bugs/1805088 > > [Impact] > Got dmesg kernel BUG while loading iwlwifi driver on machines > which has 16 or more logical CPUs > kernel: RIP: 0010:iwl_pcie_rxq_alloc_rbs+0x1d0/0x1f0 [iwlwifi] > And it leads to wifi can't scan any APs, and leads to system hangs > while suspending. > > [Fix] > Below commit contained in v4.17 fix the issue. > ab1068d6866e iwlwifi: pcie: compare with number of IRQs requested for, > not number of CPUs > > [Regression Potential] > Low. > > [Misc] > The commit is in v4.17, so ubuntu cosmic is safe. > And ubuntu xenial is safe, too, since the commit which introduces this > issue isn't contained in v4.4 kernel > 2e5d4a8f61dc iwlwifi: pcie: Add new configuration to enable MSIX > > Hao Wei Tee (1): > iwlwifi: pcie: compare with number of IRQs requested for, not number > of CPUs > > drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 10 +++++----- > 1 file changed, 5 insertions(+), 5 deletions(-) Acked-by: Kai-Heng Feng <kai.heng.feng@canonical.com> > > -- > 2.17.1 > > > -- > kernel-team mailing list > kernel-team@lists.ubuntu.com > https://lists.ubuntu.com/mailman/listinfo/kernel-team
Applied on oem kernel 4.15.0-1029.34
Actually, it was already APPLIED to bionic. It came in as part of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1808185 On 2018-11-26 16:22:05 , AceLan Kao wrote: > BugLink: https://bugs.launchpad.net/bugs/1805088 > > [Impact] > Got dmesg kernel BUG while loading iwlwifi driver on machines > which has 16 or more logical CPUs > kernel: RIP: 0010:iwl_pcie_rxq_alloc_rbs+0x1d0/0x1f0 [iwlwifi] > And it leads to wifi can't scan any APs, and leads to system hangs > while suspending. > > [Fix] > Below commit contained in v4.17 fix the issue. > ab1068d6866e iwlwifi: pcie: compare with number of IRQs requested for, > not number of CPUs > > [Regression Potential] > Low. > > [Misc] > The commit is in v4.17, so ubuntu cosmic is safe. > And ubuntu xenial is safe, too, since the commit which introduces this > issue isn't contained in v4.4 kernel > 2e5d4a8f61dc iwlwifi: pcie: Add new configuration to enable MSIX > > Hao Wei Tee (1): > iwlwifi: pcie: compare with number of IRQs requested for, not number > of CPUs > > drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 10 +++++----- > 1 file changed, 5 insertions(+), 5 deletions(-) > > -- > 2.17.1 > > > -- > kernel-team mailing list > kernel-team@lists.ubuntu.com > https://lists.ubuntu.com/mailman/listinfo/kernel-team
BugLink: https://bugs.launchpad.net/bugs/1805088 [Impact] Got dmesg kernel BUG while loading iwlwifi driver on machines which has 16 or more logical CPUs kernel: RIP: 0010:iwl_pcie_rxq_alloc_rbs+0x1d0/0x1f0 [iwlwifi] And it leads to wifi can't scan any APs, and leads to system hangs while suspending. [Fix] Below commit contained in v4.17 fix the issue. ab1068d6866e iwlwifi: pcie: compare with number of IRQs requested for, not number of CPUs [Regression Potential] Low. [Misc] The commit is in v4.17, so ubuntu cosmic is safe. And ubuntu xenial is safe, too, since the commit which introduces this issue isn't contained in v4.4 kernel 2e5d4a8f61dc iwlwifi: pcie: Add new configuration to enable MSIX Hao Wei Tee (1): iwlwifi: pcie: compare with number of IRQs requested for, not number of CPUs drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)