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RHEL system has run out of memory and is now frozen. The SysReq commands are not working, so I am not even sure that /proc/sys/kernel/sysrq is set to 1. Is there any other "safe" way I can reboot w/out power cycling?

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Define "frozen". Did it panic? Or did something else happen? –  Michael Hampton Feb 19 '13 at 3:12
    
The Big Red Button should unwedge it enough to shut down (somewhat) normally; if not, waiting a while for activity to drain and pulling the plug might be the only option. Oh, and make sure you know how this happened so it won't happen again. –  vonbrand Feb 19 '13 at 4:08
    
@MichaelHampton It's completely unresponsive. It didn't panic, it just ran out of memory. The last update to a top display showed 0 bytes of swap and a couple of kb of physical memory. –  AnonSubmitter85 Feb 20 '13 at 15:22
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