Red Hat Bugzilla – Bug 459798
F9 + MLS + NFS = kernel oops
Last modified: 2009-07-14 10:40:53 EDT
Created attachment 314805 [details]
Description of problem:
Starting NFS on an up-to-date F9 system with MLS policy in enforcing mode causes kernel oops (and hangs the console/ssh terminal window). NFS was previously working for targeted/enforcing.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. set up nfs system w/targeted policy
2. switch to MLS/permissive, relabel, reboot to enforcing
3. newrole -r sysadm_r; run_init service nfs start
oops in nfsd4_list_rec_dir
We need to see the entire oops report; a one-line summary doesn't provide any useful information.
Did you thing about maybe, I don't know, checking the attachment? ;-)
Created attachment 315932 [details]
rpc/nfs avcs and audit2allow tes
no oops and nfs mounts work after autid2allow and inserting generated modules.
Issue remains with 126.96.36.199-29.fc9.i686 / selinux-policy-3.3.1-95.fc9.noarch. Here's another oops/call trace, this time on x86
IP: [<c04fe3e4>] list_del+0x4/0x53
*pde = 0e5e3067 *pte = 00000000
Oops: 0000 [#1] SMP
Modules linked in: nfsd exportfs nfs lockd nfs_acl rpcsec_gss_krb5 auth_rpcgss des_generic sunrpc ipt_REJECT ipt_LOG nf_conntrack_ipv4 iptable_filter ip_tables ip6t_REJECT xt_tcpudp nf_conntrack_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables x_tables ipv6 loop dm_multipath ppdev sr_mod cdrom snd_ens1371 gameport snd_rawmidi snd_ac97_codec ac97_bus snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device parport_pc snd_pcm_oss parport snd_mixer_oss floppy snd_pcm pcspkr snd_timer snd soundcore snd_page_alloc pcnet32 mii sg pata_acpi ata_generic ac i2c_piix4 ata_piix i2c_core libata dm_snapshot dm_zero dm_mirror dm_log dm_mod BusLogic sd_mod scsi_mod ext3 jbd mbcache uhci_hcd ohci_hcd ehci_hcd [last unloaded: microcode]
Pid: 1986, comm: nfsd4 Tainted: G W (188.8.131.52-29.fc9.i686 #1)
EIP: 0060:[<c04fe3e4>] EFLAGS: 00010217 CPU: 0
EIP is at list_del+0x4/0x53
EAX: 00000000 EBX: ce71c180 ECX: cf306a18 EDX: cea4c580
ESI: cc4aef48 EDI: 00000000 EBP: cc4aef2c ESP: cc4aef28
DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
Process nfsd4 (pid: 1986, ti=cc4ae000 task=cc497080 task.ti=cc4ae000)
Stack: ce71c180 cc4aef60 d0bad079 cc4aefa8 d0bad243 fffffff3 00000000 00000000
00000000 00000000 cf306a18 ce71c180 d0bb9198 0000005a cc4aef6c d0bad1d4
ce71c180 cc4aef90 d0ba92ed c07a2a80 48f77592 cc4972dc cc497080 ce71c180
[<d0bad079>] ? nfsd4_list_rec_dir+0xf3/0x13a [nfsd]
[<d0bad243>] ? purge_old+0x0/0x3a [nfsd]
[<d0bad1d4>] ? nfsd4_recdir_purge_old+0x2a/0x5c [nfsd]
[<d0ba92ed>] ? laundromat_main+0x59/0x1d0 [nfsd]
[<d0ba9294>] ? laundromat_main+0x0/0x1d0 [nfsd]
[<c0436785>] ? run_workqueue+0x7c/0xfb
[<c04368ba>] ? worker_thread+0xb6/0xc2
[<c0439513>] ? autoremove_wake_function+0x0/0x33
[<c0436804>] ? worker_thread+0x0/0xc2
[<c04392a6>] ? kthread+0x3b/0x61
[<c043926b>] ? kthread+0x0/0x61
[<c0405837>] ? kernel_thread_helper+0x7/0x10
Code: 39 c7 75 e1 8b 53 08 8d 4b 04 8d 46 04 e8 68 00 00 00 8b 53 10 8d 4b 0c 8d 46 0c e8 5a 00 00 00 5b 5e 5f 5d c3 90 90 55 89 e5 53 <8b> 58 04 8b 0b 39 c1 74 13 51 50 68 b8 59 6e c0 e8 a2 08 13 00
EIP: [<c04fe3e4>] list_del+0x4/0x53 SS:ESP 0068:cc4aef28
---[ end trace 4eaa2a86a8e2da22 ]---
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