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Date: Mon, 04 May 2009 21:31:04 -0700 (PDT) From: David Miller <davem@...emloft.net> To: jeffrey.t.kirsher@...el.com Cc: netdev@...r.kernel.org, gospo@...hat.com, jesse.brandeburg@...el.com Subject: Re: [net-2.6 PATCH] e1000: fix virtualization bug From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> Date: Mon, 04 May 2009 14:19:42 -0700 > a recent fix to e1000 (commit 15b2bee2) caused KVM/QEMU/VMware based > virtualized e1000 interfaces to begin failing when resetting. > > This is because the driver in a virtual environment doesn't > get to run instructions *AT ALL* when an interrupt is asserted. > The interrupt code runs immediately and this recent bug fix > allows an interrupt to be possible when the interrupt handler > will reject it (due to the new code), when being called from > any path in the driver that holds the E1000_RESETTING flag. > > the driver should use the __E1000_DOWN flag instead of the > __E1000_RESETTING flag to prevent interrupt execution > while reconfiguring the hardware. > > Signed-off-by: Jesse Brandeburg <jesse.brandeburg@...el.com> > Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> Applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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