http://bugzilla.opensuse.org/show_bug.cgi?id=1075878 Bug ID: 1075878 Summary: Apocalyptic loss of proc/tmpfs/sysfs mounts after WIFI disconnect through NetworkManager Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: openSUSE Factory Status: NEW Severity: Critical Priority: P5 - None Component: Network Assignee: bnc-team-screening@forge.provo.novell.com Reporter: niels@nielsvm.org QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36 Build Identifier: I reinstalled Tumbleweed last week and since then, a major bug grinds my entire system to a halt. So far I figured out that disconnecting from a WIFI network or connecting to a new network, triggers this rather apocalyptic symptom. As soon as the call to NM happens, procfs disappears rendering the entire system unusable. Commands like sudo/mount/reboot/halt etc no more work, sockets disappear and the only way to reboot is through Alt+SysRq. Kernel and processes keep running, but spawning processes and any other primitive operations fail. Reproducible: Always Steps to Reproduce: All these things trigger the behavior: - Disconnecting the auto-connected WIFI network through Plasma's network applet. - Connect to different WIFI network through Plasma's network applet. - nmcli connection down wlp3s0 <ESSID> - Logged in as a different user with less privilege groups, same thing happens. - Removed connections from /etc/NetworkManager/system-connections/ and readded, still happens. Actual Results: Mounts immediately disappear, logging no longer works, system basically melts down. Mouse cursor keeps moving and windows are still drag-gable, tabs in Konsole can still be closed/moved, but no new ones added for instance. Higher level services like D-BUS still seem active, anything low-level is gone. Expected Results: Basic WIFI operation. $ nmcli wlp3s0: connected to RNC "Intel Wireless 7260 (Dual Band Wireless-AC 7260)" wifi (iwlwifi), E8:B1:FC:F7:6A:A2, hw, mtu 1500 ip4 default inet4 10.0.1.22/24 inet6 fe80::6dd8:d933:d607:d8e1/64 $ dmesg 00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b) 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) 00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b) 00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04) 00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04) 00:16.3 Serial controller: Intel Corporation 8 Series HECI KT (rev 04) 00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I218-LM (rev 04) 00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 6 (rev e4) 00:1c.1 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4) 00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04) 02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader (rev 01) 03:00.0 Network controller: Intel Corporation Wireless 7260 (rev 83) $ dmesg|grep "wlp3s0\|iwlwifi\|error\|firmware" [ 3.162392] psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3 [ 5.372976] tpm tpm0: A TPM error (6) occurred attempting to read a pcr value [ 5.530898] iwlwifi 0000:03:00.0: loaded firmware version 17.608620.0 op_mode iwlmvm [ 5.550854] iwlwifi 0000:03:00.0: Detected Intel(R) Dual Band Wireless AC 7260, REV=0x144 [ 5.570969] iwlwifi 0000:03:00.0: base HW address: e8:b1:fc:f7:6a:a2 [ 5.813741] iwlwifi 0000:03:00.0 wlp3s0: renamed from wlan0 [ 6.815055] psmouse serio3: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3 [ 7.723688] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready [ 7.974563] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready [ 8.259831] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready [ 8.350551] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready [ 11.603406] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready [ 14.554637] wlp3s0: authenticate with c0:a0:bb:ee:42:b4 [ 14.559795] wlp3s0: send auth to c0:a0:bb:ee:42:b4 (try 1/3) [ 14.563528] wlp3s0: authenticated [ 14.563979] wlp3s0: associate with c0:a0:bb:ee:42:b4 (try 1/3) [ 14.569912] wlp3s0: RX AssocResp from c0:a0:bb:ee:42:b4 (capab=0x431 status=0 aid=2) [ 14.571276] wlp3s0: associated [ 14.836520] IPv6: ADDRCONF(NETDEV_CHANGE): wlp3s0: link becomes ready $ find /etc/NetworkManager/ /etc/NetworkManager/ /etc/NetworkManager/dispatcher.d /etc/NetworkManager/dispatcher.d/nfs /etc/NetworkManager/dispatcher.d/99tlp-rdw-nm /etc/NetworkManager/dispatcher.d/ntp /etc/NetworkManager/dispatcher.d/autofs /etc/NetworkManager/VPN /etc/NetworkManager/VPN/nm-vpnc-service.name /etc/NetworkManager/VPN/nm-openvpn-service.name /etc/NetworkManager/NetworkManager.conf /etc/NetworkManager/system-connections /etc/NetworkManager/system-connections/... (stripped for privacy reasons) $ cat /etc/NetworkManager/NetworkManager.conf [main] plugins=ifcfg-suse,keyfile [connectivity] uri=http://conncheck.opensuse.org -- You are receiving this mail because: You are on the CC list for the bug.