Bug 846037
| Summary: | suspicious RCU usage. security/selinux/netnode.c:178 | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Ales Ledvinka <aledvink> |
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | rawhide | CC: | eparis, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, tsmetana |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-08-24 00:12:09 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
host - f17 - permissive guest level 1 - f18 - permissive (running the testsuite, libvirtd, dnsmasq and showing the suspicious usage message guest level 2 - f17 - permissive (most likely not related and not running, the one being run by the tests nested inside the vm.) annoying. I've been reporting this for over a year upstream. I'll push it again. https://lkml.org/lkml/2011/4/20/308 https://lkml.org/lkml/2012/6/5/10 Eric, I'm assuming you're going to get Dave's patch into the 3.6 kernel? I'm sure Eric won't let the ball drop for a third time. I have faith in him. In the meantime, I've added the patch to F18/rawhide. kernel-3.6.0-0.rc2.git2.1.fc18, grub2-2.00-5.fc18, pesign-0.10-4.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/kernel-3.6.0-0.rc2.git2.1.fc18,grub2-2.00-5.fc18,pesign-0.10-4.fc18 kernel-3.6.0-0.rc2.git2.1.fc18, grub2-2.00-5.fc18, pesign-0.10-4.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: while running cimtest upstream test suite for libvirt-cim which manages libvirt and it's vm's the console complains. May include restarting services outside test-suite - pre-test suite enviroment setup. Version-Release number of selected component (if applicable): kernel-3.4.6-2.fc17.x86_64 kernel-devel-3.6.0-0.rc0.git6.1.fc18.x86_64 kernel-devel-3.4.6-2.fc17.x86_64 kernel-3.6.0-0.rc0.git6.1.fc18.x86_64 kernel-headers-3.6.0-0.rc0.git6.1.fc18.x86_64 dnsmasq-2.59-6.fc18.x86_64 libvirt-daemon-driver-network-0.9.13-3.fc18.x86_64 libvirt-daemon-driver-nwfilter-0.9.13-3.fc18.x86_64 libvirt-daemon-driver-lxc-0.9.13-3.fc18.x86_64 libvirt-daemon-config-network-0.9.13-3.fc18.x86_64 libvirt-0.9.13-3.fc18.x86_64 libvirt-cim-0.6.1-3.fc18.x86_64 libvirt-daemon-driver-nodedev-0.9.13-3.fc18.x86_64 libvirt-client-0.9.13-3.fc18.x86_64 libvirt-daemon-0.9.13-3.fc18.x86_64 libvirt-daemon-driver-xen-0.9.13-3.fc18.x86_64 libvirt-daemon-driver-libxl-0.9.13-3.fc18.x86_64 libvirt-daemon-driver-interface-0.9.13-3.fc18.x86_64 libvirt-python-0.9.13-3.fc18.x86_64 libvirt-daemon-config-nwfilter-0.9.13-3.fc18.x86_64 libvirt-daemon-driver-storage-0.9.13-3.fc18.x86_64 libvirt-daemon-driver-secret-0.9.13-3.fc18.x86_64 libvirt-daemon-xen-0.9.13-3.fc18.x86_64 libvirt-daemon-driver-qemu-0.9.13-3.fc18.x86_64 How reproducible: not known yet. Steps to Reproduce: 1.N/A 2.N/A 3.N/A Actual results: dmesg [287052.427524] =============================== [287052.427981] [ INFO: suspicious RCU usage. ] [287052.445930] 3.6.0-0.rc0.git6.1.fc18.x86_64 #1 Not tainted [287052.446566] ------------------------------- [287052.447065] security/selinux/netnode.c:178 suspicious rcu_dereference_check() usage! [287052.447907] [287052.447907] other info that might help us debug this: [287052.447907] [287052.448825] [287052.448825] rcu_scheduler_active = 1, debug_locks = 0 [287052.449551] 1 lock held by dnsmasq/22397: [287052.449993] #0: (sel_netnode_lock){+.....}, at: [<ffffffff812ea194>] sel_netnode_sid+0x184/0x3e0 [287052.451047] [287052.451047] stack backtrace: [287052.451542] Pid: 22397, comm: dnsmasq Not tainted 3.6.0-0.rc0.git6.1.fc18.x86_64 #1 [287052.452375] Call Trace: [287052.452665] [<ffffffff810d038d>] lockdep_rcu_suspicious+0xfd/0x130 [287052.453360] [<ffffffff812ea3ca>] sel_netnode_sid+0x3ba/0x3e0 [287052.453986] [<ffffffff812ea010>] ? sel_netnode_find+0x180/0x180 [287052.454643] [<ffffffff812e1218>] selinux_socket_bind+0xf8/0x2d0 [287052.455560] [<ffffffff812da136>] security_socket_bind+0x16/0x20 [287052.456987] [<ffffffff8157896a>] sys_bind+0x7a/0x100 [287052.457932] [<ffffffff816dfb15>] ? sysret_check+0x22/0x5d [287052.458690] [<ffffffff810d4c2d>] ? trace_hardirqs_on_caller+0x10d/0x1a0 [287052.459565] [<ffffffff8110025c>] ? __audit_syscall_entry+0xcc/0x300 [287052.460386] [<ffffffff8134c5ae>] ? trace_hardirqs_on_thunk+0x3a/0x3f [287052.461214] [<ffffffff816dfae9>] system_call_fastpath+0x16/0x1b Expected results: Additional info: