Date: Thu, 18 Feb 2016 13:37:15 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 168411] [vm] [panic] uma_find_refcnt(): zone possibly not UMA_ZONE_REFCNT Message-ID: <bug-168411-8-U0KWYxbTFZ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-168411-8@https.bugs.freebsd.org/bugzilla/> References: <bug-168411-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D168411 --- Comment #2 from Andrey V. Elsukov <ae@FreeBSD.org> --- I found the cause of our panics. ixgbe(4) needs to have configured the size= of buffer to receive packets via SRRCTL registers. In our case it used 4k buffers and for jumbo frames the size of the first buffer always was 4k. So, even if we correctly set m_len/m_pkthdr.len it al= ways writes 4k into m_data. This leads to memory corruption due that the size of available space in the mbuf is less than 4k (128 bytes reserved). After we correctly configure SRRCTL registers the panics disappeared. --=20 You are receiving this mail because: You are the assignee for the bug.=
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