On 3/11/24 7:20 PM, Linus Torvalds wrote: > On Mon, 11 Mar 2024 at 18:17, Jens Axboe <axboe@xxxxxxxxx> wrote: >> >> That does seem like the most plausible explanation, I'm just puzzled why >> nobody hit it before it landed in Linus's tree. > > Yeah, who _doesn't_ have nvme drives in their system today? > > What odd hardware are people running? Maybe older SATA based flash? But I haven't seen any of those in years. Or, god forbid, rotational storage? Various NVMe devices do have different limits for things like max transfer size etc, so if it's related to that, then it is possible that nvme was used but just didn't trigger on that test case. Out of curiosity, on your box where it broken, what does: grep . /sys/block/nvme0n1/queue/* say? -- Jens Axboe
