Date: Wed, 23 May 2018 05:20:40 +0000 From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 228335] [patch] virtio indirect descriptors should use contiguous memory Message-ID: <bug-228335-27103-zJMOss6KWD@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-228335-27103@https.bugs.freebsd.org/bugzilla/> References: <bug-228335-27103@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D228335 --- Comment #3 from Bryan Venteicher <bryanv@FreeBSD.org> --- While the malloc(9) behavior may not be documented, VirtIO is not alone in depending on the behavior. In fact, bus_dmamem_alloc(9) uses malloc(9) for = <=3D PAGE_SIZE allocations (given suitable alignment and attributes) so you may still be susceptible to this depending on what kernel interfaces have been reimplemented. Also, note there is a strong assumpting in the network stack= and drivers that mbuf clusters (including jumbo) are physically contiguous. --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-228335-27103-zJMOss6KWD>