hmm I can't recreate the issue now. maybe it doesn't have to do with steam. [ 1251.616611] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [ 1251.616617] ecryptfs_readpage: Error decrypting page; rc = [-4] [ 1538.783265] audit: type=1400 audit(1464116426.163:70): apparmor="DENIED" operation="mknod" profile="/usr/lib/firefox/firefox{,*[^s][^h]}" name="/dev/shm/UIaQHa" pid=6040 comm="firefox" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000 [ 1568.092683] csgo_linux[5922]: segfault at 18 ip 00000000f7454b07 sp 00000000d0bbc220 error 4 in libGL.so.340.96[f740a000+b6000] [ 1569.428923] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [ 1569.428930] ecryptfs_readpage: Error decrypting page; rc = [-4] [ 1640.892711] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [ 1640.892723] ecryptfs_readpage: Error decrypting page; rc = [-4] [ 4124.250393] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [ 4124.250398] ecryptfs_readpage: Error decrypting page; rc = [-4] [ 5915.012016] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [ 5915.012023] ecryptfs_readpage: Error decrypting page; rc = [-4] [ 8108.952281] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [ 8108.952288] ecryptfs_readpage: Error decrypting page; rc = [-4] [ 9707.657787] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [ 9707.657794] ecryptfs_readpage: Error decrypting page; rc = [-4] [ 9881.697323] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [ 9881.697329] ecryptfs_readpage: Error decrypting page; rc = [-4] [ 9881.697390] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [ 9881.697392] ecryptfs_readpage: Error decrypting page; rc = [-4] [11543.724208] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [11543.724215] ecryptfs_readpage: Error decrypting page; rc = [-4] [11543.724260] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [11543.724262] ecryptfs_readpage: Error decrypting page; rc = [-4] [11568.143245] device enp2s0 left promiscuous mode [17325.475556] audit: type=1400 audit(1464132212.890:71): apparmor="DENIED" operation="mknod" profile="/usr/lib/firefox/firefox{,*[^s][^h]}" name="/dev/shm/qyew6g" pid=8394 comm="firefox" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000 [17416.319524] audit: type=1400 audit(1464132303.738:72): apparmor="DENIED" operation="open" profile="/usr/lib/firefox/firefox{,*[^s][^h]}" name="/sys/devices/system/node/node0/meminfo" pid=8394 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0 [22292.050865] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [22292.050878] ecryptfs_readpage: Error decrypting page; rc = [-4] [23325.017089] csgo_linux[8580]: segfault at 18 ip 00000000f7449b07 sp 00000000f4b6e220 error 4 in libGL.so.340.96[f73ff000+b6000] [23328.975790] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [23328.975802] ecryptfs_readpage: Error decrypting page; rc = [-4] [23328.976185] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [23328.976190] ecryptfs_readpage: Error decrypting page; rc = [-4] [23414.968054] Adding 6289916k swap on /dev/mapper/cryptswap1. Priority:-1 extents:1 across:6289916k FS [24035.193435] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [24035.193447] ecryptfs_readpage: Error decrypting page; rc = [-4] [24205.827724] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [24205.827729] ecryptfs_readpage: Error decrypting page; rc = [-4] [26773.034290] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [26773.034302] ecryptfs_readpage: Error decrypting page; rc = [-4] [26773.034370] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [26773.034375] ecryptfs_readpage: Error decrypting page; rc = [-4] [26826.033068] audit: type=1400 audit(1464141713.474:73): apparmor="DENIED" operation="mknod" profile="/usr/lib/firefox/firefox{,*[^s][^h]}" name="/dev/shm/veUluV" pid=9538 comm="firefox" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000 [26917.107416] audit: type=1400 audit(1464141804.547:74): apparmor="DENIED" operation="open" profile="/usr/lib/firefox/firefox{,*[^s][^h]}" name="/sys/devices/system/node/node0/meminfo" pid=9538 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0 [29047.655500] cfg80211: World regulatory domain updated: [29047.655507] cfg80211: DFS Master region: unset [29047.655509] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time) [29047.655513] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A) [29047.655517] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A) [29047.655519] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A) [29047.655523] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A) [29047.655526] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s) [29047.655529] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s) [29047.655532] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A) [29047.655535] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A) [30767.184442] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [30767.184450] ecryptfs_readpage: Error decrypting page; rc = [-4] [31243.044994] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4] [31243.045000] ecryptfs_readpage: Error decrypting page; rc = [-4] [32122.897656] audit: type=1107 audit(1464147010.354:75): pid=816 uid=106 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/UPower" interface="org.freedesktop.UPower" member="EnumerateDevices" mask="send" name="org.freedesktop.UPower" pid=9538 label="/usr/lib/firefox/firefox{,*[^s][^h]}" peer_pid=1524 peer_label="unconfined" exe="/usr/bin/dbus-daemon" sauid=106 hostname=? addr=? terminal=?' [35806.723528] gameoverlayui[13393]: segfault at 4d0 ip 00000000f6ac98a4 sp 00000000fff030d0 error 4 in libX11.so.6.3.0[f6aa8000+130000] [35857.726477] audit: type=1400 audit(1464150745.189:76): apparmor="DENIED" operation="mknod" profile="/usr/lib/firefox/firefox{,*[^s][^h]}" name="/dev/shm/qFrjpH" pid=13566 comm="firefox" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000 [35948.469547] audit: type=1400 audit(1464150835.933:77): apparmor="DENIED" operation="open" profile="/usr/lib/firefox/firefox{,*[^s][^h]}" name="/sys/devices/system/node/node0/meminfo" pid=13566 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0 [36015.824781] audit: type=1107 audit(1464150903.289:78): pid=816 uid=106 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/hostname1" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name=":1.126" pid=13566 label="/usr/lib/firefox/firefox{,*[^s][^h]}" peer_pid=13746 peer_label="unconfined" exe="/usr/bin/dbus-daemon" sauid=106 hostname=? addr=? terminal=?' [36015.826356] audit: type=1107 audit(1464150903.289:79): pid=816 uid=106 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/hostname1" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name=":1.126" pid=13566 label="/usr/lib/firefox/firefox{,*[^s][^h]}" peer_pid=13746 peer_label="unconfined" exe="/usr/bin/dbus-daemon" sauid=106 hostname=? addr=? terminal=?'