Date: Fri, 27 Feb 2015 18:31:43 +0200 From: Beeblebrox <zaphod@berentweb.com> To: freebsd-current@freebsd.org Subject: system failure: cannot kill webkit-gtk3 if using dumbell/radeon Message-ID: <20150227183143.708a0656@rsbsd.rsb>
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I just hit a major kernel bug with the new Radeon code * I'm on dumbbell's patch_38 for world/kernel (11.0-CURRENT #2 45116d3(mast= er)-dirty) * I started www/midori and was getting segfaults with URL that start with "= h". I re-built midori using WITH_DEBUG=3Dyes, got no output, then re-built = without DEBUG enabled because I was having image display problems. Reported= the problem as port issue: http://freebsd.1045724.n5.nabble.com/www-midori= -dislikes-the-letter-h-td5992424.html * At some point while using Midori (and right after I logged into Facebook)= sytem started to hiccup and slow down, so I swithced to tty*. I start X.or= g with "startx", so I tried to kill X with "ctr+c" > no response. Here's where it gets interesting. Each step indicated with "*" was done on = different tty, all tty's were logged in as root: * issue "# top" > tty froze, does not exit. * Several other simple root-level commands from different TTY result in TTY= freeze. * Let's free some RAM: "# service kill xyz" > nothing, no result kill -9 process-name > ok jail -r aa bb cc > tty freeze * jls > jails still running, previous command obviously could not kill let's kill processes: kill -9 process_num_for_midori > ok kill -9 process_num_for_several others > ok kill -9 process_num_for_WebKitWeb > NOPE, DOES NOT KILL * "# shutdown now" > hangs for ever * On TTY1: shows signal 15, but does not proceed. Seems to have difficulty killing jails. "ctl+alt+del" helps a bit. Shuts down eventually, after appx 10 mins. After restart and in xorg, one cycle of start/stop for Midori does not prod= uce any of symptoms above. When killing WebKitWeb, the higher process_numbers died, but the lower proc= ess_numbers resisted. So the spawned processes could be killed, but the mas= ter process could not. --=20 FreeBSD_amd64_11-Current_RadeonKMS
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