On 4/22/24 13:15, Sean Anderson wrote: > On 4/22/24 12:49, Keith Busch wrote: >> On Mon, Apr 22, 2024 at 12:28:23PM -0400, Sean Anderson wrote: >>> Sandisk SN530 NVMe drives have broken MSIs. On systems without MSI-X >>> support, all commands time out resulting in the following message: >>> >>> nvme nvme0: I/O tag 12 (100c) QID 0 timeout, completion polled >>> >>> These timeouts cause the boot to take an excessively-long time (over 20 >>> minutes) while the initial command queue is flushed. >>> >>> Address this by adding a quirk for drives with buggy MSIs. The lspci >>> output for this device (recorded on a system with MSI-X support) is: >> >> Based on your description, the patch looks good. This will fallback to >> legacy emulated pin interrupts, and that's better than timeout polling, >> but will still appear sluggish compared to MSI's. Is there an errata >> from the vendor on this? I'm just curious if the bug is at the Device ID >> level, and not something we could constrain to a particular model or >> firmware revision. > > I wasn't able to find any errata for this drive. I wasn't able to > determine if there are any firmware updates for this drive (FWIW I have > version "21160001"). I'll contact WD and see if they know about this > issue. Well, the response from WD support was "we don't support Linux, and if we did there aren't any bugs in the drive anyway". --Sean
