Created attachment 214821 [details] backtrace on poweroff or halt I am using F23 on my Dell XPS 13 9350 (2016) with FHD Display and an i7-6560U CPU. As there are often GPU Hang problems and crash, i installed rawhide kernel to test with it. But here when i do poweroff, or halt, i get the backtrace/locking detect in Attachment. It was told me to report it here, if it is an invalid because i use rawhide kernel with stable F23 then please close this Bug. If you need any other details then the ones in Attachment please let me know.
This is a false positive detection. Though the warning looks alarming, there is no deadlock concern here. Ming proposed a patch to suppress the warning here: http://lists.infradead.org/pipermail/linux-nvme/2016-April/004301.html I don't see this queued up in maintainer's tree yet, so I'll ping the mailing list.
Staged for 4.7. Commit is currently available here: http://git.kernel.dk/?p=linux-block.git;a=commit;f=drivers/nvme/host/pci.c;h=2e39e0f608c130411f52c9fe5648dbcda5e28528