Date: Sat, 07 Jun 2014 14:28:19 -0700 From: Peter Grehan <grehan@freebsd.org> To: Steve Wills <swills@FreeBSD.org> Cc: virtualization@FreeBSD.org Subject: Re: interrupt storm on ahci Message-ID: <539383F3.2060307@freebsd.org> In-Reply-To: <20140607212440.GB3163@mouf.net> References: <20140607212440.GB3163@mouf.net>
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Hi Steve, > I'm running a FreeBSD guest in bhyve on a FreeBSD host. Both are running > FreeBSD CURRENT, r266947. I've gotten this message about 12 times since boot: > > interrupt storm detected on "irq268:"; throttling interrupt source > > vmstat -i shows: > > irq268: ahci1 236514222 839 > > ahci1 is the second disk connected to the system: > > ahci1: <Intel ICH8 AHCI SATA controller> mem 0xc0002400-0xc00027ff irq 18 at device 4.0 on pci0 > > The VM itself runs poudriere and was building a bunch of packages. At the > moment, the VM seems to be in a rather odd state. The poudriere jails are > running, but not doing anything. Ideas? Is this an 8.* host ? I don't believe AHCI has MSI support on that version, and AHCI legacy interrupts haven't had a huge amount of testing under load. If it is 8.*, I'd recommend using virtio-blk for the block device until we can work out what's going wrong. later, Peter.
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