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Date: Fri, 28 Oct 2016 02:50:01 +0000 From: "Brown, Aaron F" <aaron.f.brown@...el.com> To: David Singleton <davsingl@...co.com>, "Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com> CC: khalidm <khalidm@...co.com>, "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: RE: [PATCH] e1000e: x86: e1000 driver trying to free already-free irq. > From: netdev-owner@...r.kernel.org [mailto:netdev- > owner@...r.kernel.org] On Behalf Of David Singleton > Sent: Monday, October 17, 2016 9:51 AM > To: Kirsher, Jeffrey T <jeffrey.t.kirsher@...el.com> > Cc: khalidm <khalidm@...co.com>; intel-wired-lan@...ts.osuosl.org; > netdev@...r.kernel.org; linux-kernel@...r.kernel.org > Subject: [PATCH] e1000e: x86: e1000 driver trying to free already-free irq. > > From: khalidm <khalidm@...co.com> > > During systemd reboot sequence network driver interface is shutdown > by e1000_close. The PCI driver interface is shut by e1000_shutdown. > The e1000_shutdown checks for netif_running status, if still up it > brings down driver. But it disables msi outside of this if statement, > regardless of netif status. All this is OK when e1000_close happens > after shutdown. However, by default, everything in systemd is done > in parallel. This creates a conditions where e1000_shutdown is called > after e1000_close, therefore hitting BUG_ON assert in free_msi_irqs. > > Cc-Id: xe-kernel@...ernal.cisco.com > Signed-off-by: khalidm <khalidm@...co.com> > Signed-off-by: David Singleton <davsingl@...co.com> > --- > drivers/net/ethernet/intel/e1000e/netdev.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Tested-by: Aaron Brown <aaron.f.brown@...el.com>
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