Date: Sun, 10 Jan 2016 19:06:49 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-amd64@FreeBSD.org Subject: [Bug 206112] [rtwn] Under heavy load, "can't map mbuf (error 12)" arises Message-ID: <bug-206112-6@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D206112 Bug ID: 206112 Summary: [rtwn] Under heavy load, "can't map mbuf (error 12)" arises Product: Base System Version: 11.0-CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: wireless Assignee: freebsd-wireless@FreeBSD.org Reporter: evil.lombo@gmail.com CC: freebsd-amd64@FreeBSD.org CC: freebsd-amd64@FreeBSD.org Hi, I'm testing the rtwn module and under heavy usage (e.g. video streaming) or= a high number of active connections (e.g. multiple browser tabs or P2P), the interface stops responding in a few minutes and the following message spams multiple times on the system message buffer. rtwn0: can't map mbuf (error: 12)=20 where 12 I assume it's the error number of ENOMEM. ifconfig wlan0 down and ifconfig wlan0 up does not reset the interface and = the card still not respond. A full reboot of the machine fixes it. When those messages appear, trying to resume the stream from the application issues a kernel panic while trying to unload the module results in a machine freeze. I'll take the crash dump, if it's necessary. With light usage, I can't get the issue. (I don't know if this relates to the performance issue I have with the modu= le. The speed seems capped to around 1/3 rather than the full 54mbps rate I got using the ndis wrapper. I'm opening a separate bug report for that.) Which information are needed? Thanks, Simone --=20 You are receiving this mail because: You are on the CC list for the bug.=
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