Date: Thu, 23 Jan 2025 14:38:04 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 284057] vmxnet3/iflib: crash in vmxnet3_isc_txd_credits_update Message-ID: <bug-284057-7501-DAmMNnFQoK@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-284057-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-284057-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D284057 --- Comment #13 from Mark Johnston <markj@FreeBSD.org> --- (In reply to Andriy Gapon from comment #12) I don't quite understand the comment either, but it makes some sense to me = that the sysctl hides the problem: the bug is that vmxnet3_isc_txd_credits_updat= e() can be called multiple times in parallel, from an interrupt handler and from the transmit path. The latter happens when ifmp_ring_enqueue() drains the ring, and this is inhibited when abdicate =3D=3D 0. But, I think concurrent calls to vmxnet3_isc_txd_credits_update() is still possible even with that setting, e.g., from _task_fn_tx(). --=20 You are receiving this mail because: You are the assignee for the bug.=
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