Re: port-riscv/60482: NetBSD 11.0_RC6 on Starfive Visionfive2 panics while booting from sd-card if nvme is connected

["Taylor R Campbell via gnats" <gnats-admin%NetBSD.org@localhost>]

The following reply was made to PR port-riscv/60482; it has been noted by GNATS.

From: Taylor R Campbell <riastradh%NetBSD.org@localhost>
To: Prince Sharma <slackercruise%gmail.com@localhost>,
	Jeff Rizzo <riz%tastylime.net@localhost>,
	Nick Hudson <nick.hudson%gmx.co.uk@localhost>,
	Martin Husemann <martin%duskware.de@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, netbsd-bugs%NetBSD.org@localhost
Subject: Re: port-riscv/60482: NetBSD 11.0_RC6 on Starfive Visionfive2 panics while booting from sd-card if nvme is connected
Date: Fri, 16 Oct 2026 19:10:18 +0000

 Can you also try building a kernel with sys/dev/pci/nvme_pci.c
 patched to change the default
 
 int nvme_pci_force_intx = 1;
 
 and another kernel with it patched to change the default
 
 int nvme_pci_mq = 0;
 
 and share what happens, including, if it panics again, output from the
 same ddb commands, (ps, show event, call heatbeat_dump, mach cpu N and
 bt)?
 
 martin's system was getting an interrupt storm from the nvme device,
 and I wonder whether fiddling with the interrupt type -- INTx vs MSI
 vs MSI-X, single-queue vs multi-queue -- might make a difference.
 This is obviously not a fix but it might reveal some information.