LTSP szerver fagyás

Sziasztok!

Időnként lefagy az ltsp vas. teljesen új így a hardver hibát egyelőre kizárnám. De annyira megfagy, hogy még a fizikailag a szerver sem reagál semmire és csak a power off segít. Az alábbi sorokat szoktam látni a logokban. Ez valami bug lehet? Van rá megoldás, hogy ne történjen ilyen a jövőben?

Mar 2 10:45:47 ltsp-server kernel: [186963.935861] npviewer.bin[15109]: segfault at 0 ip 00000000f62438c1 sp 00000000ffeb5570 error 4 in libflashplayer.so[f5e7b000+b5f000]
Mar 2 10:46:35 ltsp-server kernel: [187011.524049] lo: Disabled Privacy Extensions
Mar 2 10:49:06 ltsp-server kernel: [187162.101720] lo: Disabled Privacy Extensions
Mar 2 10:50:25 ltsp-server kernel: [187241.041434] npviewer.bin[15906]: segfault at 0 ip 00000000f61928c1 sp 00000000ffddde50 error 4 in libflashplayer.so[f5dca000+b5f000]
Mar 2 10:54:04 ltsp-server kernel: [187459.681140] lo: Disabled Privacy Extensions
Mar 2 10:56:23 ltsp-server kernel: [187599.019093] npviewer.bin[15957]: segfault at f019bc16 ip 00000000f5e88d33 sp 00000000ff9fbe30 error 4 in libflashplayer.so[f5e2e000+b5f000]
Mar 2 10:59:43 ltsp-server kernel: [187798.344536] npviewer.bin[16952]: segfault at 0 ip 00000000f61d48c1 sp 00000000ff866100 error 4 in libflashplayer.so[f5e0c000+b5f000]
Mar 2 11:03:01 ltsp-server kernel: [187996.149045] npviewer.bin[17458]: segfault at 0 ip 00000000f624d8c1 sp 00000000ffb9b5c0 error 4 in libflashplayer.so[f5e85000+b5f000]
Mar 2 11:11:19 ltsp-server kernel: [188492.982468] npviewer.bin[18000]: segfault at 418 ip 00000000f604ed16 sp 00000000ff85b578 error 6 in libflashplayer.so[f5de1000+b5f000]
Mar 2 11:12:06 ltsp-server kernel: [188539.787855] npviewer.bin[19474]: segfault at f56460b4 ip 00000000f61c58b3 sp 00000000ffe1c9a0 error 4 in libflashplayer.so[f5dfd000+b5f000]
Mar 2 12:11:49 ltsp-server kernel: [192116.859809] npviewer.bin[19597]: segfault at 418 ip 00000000f6084d16 sp 00000000ffa09f58 error 6 in libflashplayer.so[f5e17000+b5f000]
Mar 2 12:12:02 ltsp-server kernel: [192130.051797] npviewer.bin[28882]: segfault at 418 ip 00000000f602bd16 sp 00000000ff9e7668 error 6 in libflashplayer.so[f5dbe000+b5f000]
Mar 2 12:23:20 ltsp-server kernel: [192806.659756] npviewer.bin[8106]: segfault at 0 ip 00000000f61778c1 sp 00000000ff819cc0 error 4 in libflashplayer.so[f5daf000+b5f000]
Mar 2 12:24:42 ltsp-server kernel: [192888.804987] npviewer.bin[30670]: segfault at 0 ip 00000000f62018c1 sp 00000000ffea3630 error 4 in libflashplayer.so[f5e39000+b5f000]
Mar 2 12:31:10 ltsp-server kernel: [193276.063173] npviewer.bin[30874]: segfault at ef0f00b4 ip 00000000f615e8b3 sp 00000000ffb15460 error 4 in libflashplayer.so[f5d96000+b5f000]
Mar 2 12:32:58 ltsp-server kernel: [193383.859217] lo: Disabled Privacy Extensions
Mar 2 12:39:50 ltsp-server kernel: [193795.204050] npviewer.bin[28952]: segfault at 80000000 ip 0000000080000000 sp 00000000ffb7574c error 14