Date: Mon, 08 Nov 2021 09:26:03 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 259458] iflib_rxeof NULL pointer crash with vmxnet3 driver Message-ID: <bug-259458-7501-sjfbskKVHZ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-259458-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-259458-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D259458 --- Comment #19 from Andriy Gapon <avg@FreeBSD.org> --- iflib_stop has a couple of 1 ms delays in it (after stopping the hardware).= I think that those could be enough for the taskqueues to complete any queued = work on real hardware. But on VMs, especially if the hypervisor is very busy (oversubscribed), the taskqueue threads can get delayed arbitrarily. I think that that may explain why the problem is rarely seen and why we see= it with vmxnet3 specifically. --=20 You are receiving this mail because: You are the assignee for the bug.=
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