On Tue, Jan 27, 2009 at 08:48:41PM +0100, Miklos Szeredi wrote: > [Forwarding to linux-nfs@ and sunrpc maintainers] > > On Mon, 26 Jan 2009, David Shaw wrote: > > Hello, > > > > This is reasonably repeatable (i.e. not 100%, but certainly more than > > 25%). The kernel is 2.6.27.9-159.fc10.i686.PAE (this is the most > > recent Fedora 10 PAE kernel), and we're using fuse-2.8.0pre2 on the > > userspace side. We are NFS-exporting the fuse filesystem. The > > machine in question is a dual core Pentium D 2.8ghz with 4g of RAM. > > Can you try to reproduce this on a vanilla kernel, to exclude the > possibility of a fedora patch being the culprit? > > > Occasionally, we get a sudden reboot. After attaching a serial cable, > > we found this. It doesn't look directly fuse related from the > > backtrace, but then again, we're not seeing any problems exporting a > > regular (non-fuse) filesystem. > > > > Any thoughts? > > The BUG triggers in this __module_get() in svc_recv(): > > /* > * We know this module_get will succeed because the > * listener holds a reference too > */ > __module_get(newxpt->xpt_class->xcl_owner); > > Either the comment is wrong or something got corrupted. > > Tom, Bruce, any idea what could be causing this? It doesn't really > look fuse related. I seem to recall something being fixed recently there--I'll try to find the commit id. In the mean time they might want to retest with the latest kernel. --b. > > Thanks, > Miklos > > > > > kernel BUG at include/linux/module.h:390! > > invalid opcode: 0000 [#1] SMP > > Modules linked in: nfsd lockd nfs_acl auth_rpcgss sunrpc exportfs ipt_REDIRECT fuse ipmi_devintf ipmi_si ipmi_msghandler ipv6 iptable_nat nf_nat dm_multipath tg3 i2c_i801 libphy i3000_edac iTCO_wdt iTCO_vendor_support edac_core serio_raw pcspkr dcdbas ata_generic pata_acpi radeon drm i2c_algo_bit i2c_core [last unloaded: scsi_wait_scan] > > > > Pid: 25841, comm: nfsd Not tainted (2.6.27.9-159.fc10.i686.PAE #1) > > EIP: 0060:[<f8b02cc4>] EFLAGS: 00010246 CPU: 0 > > EIP is at svc_recv+0x3a4/0x6c6 [sunrpc] > > EAX: 00000000 EBX: f8b13500 ECX: f8b13500 EDX: 00001000 > > ESI: f78b7d90 EDI: f35ea600 EBP: f21c8fbc ESP: f21c8f74 > > DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 > > Process nfsd (pid: 25841, ti=f21c8000 task=f4598000 task.ti=f21c8000) > > Stack: c0893c80 0036ee80 f78b7000 f2549c04 f35ea61c f2549b80 f2549c00 f40a9600 > > f78b7000 f8bb1622 00000000 f4598000 c042d0f3 00100100 00200200 f3486b00 > > 00000000 f78b7000 f21c8fd0 f8bb16e5 f78b7000 f8bb1622 00000000 f21c8fe0 > > Call Trace: > > [<f8bb1622>] ? nfsd+0x0/0x167 [nfsd] > > [<c042d0f3>] ? default_wake_function+0x0/0xd > > [<f8bb16e5>] ? nfsd+0xc3/0x167 [nfsd] > > [<f8bb1622>] ? nfsd+0x0/0x167 [nfsd] > > [<c0443973>] ? kthread+0x3b/0x61 > > [<c0443938>] ? kthread+0x0/0x61 > > [<c04098f7>] ? kernel_thread_helper+0x7/0x10 > > ======================= > > Code: 30 01 00 00 8b 57 04 89 f8 ff 52 04 85 c0 89 45 d4 0f 84 11 01 00 00 8b 00 8b 58 04 85 db 74 1f 89 d8 e8 56 d7 94 c7 85 c0 75 04 <0f> 0b eb fe 64 a1 04 c0 88 c0 c1 e0 07 ff 84 03 80 01 00 00 8b > > EIP: [<f8b02cc4>] svc_recv+0x3a4/0x6c6 [sunrpc] SS:ESP 0068:f21c8f74 > > Kernel panic - not syncing: Fatal exception > > > > Thanks, > > > > David > > > > ------------------------------------------------------------------------------ > > This SF.net email is sponsored by: > > SourcForge Community > > SourceForge wants to tell your story. > > http://p.sf.net/sfu/sf-spreadtheword > > _______________________________________________ > > fuse-devel mailing list > > fuse-devel@xxxxxxxxxxxxxxxxxxxxx > > https://lists.sourceforge.net/lists/listinfo/fuse-devel > > -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
