Arjan van de Ven wrote: > On Wed, 14 May 2008 20:49:32 -0700 > Andrew Morton wrote: > > >> On Wed, 14 May 2008 19:27:36 +0200 Michael Lang >> wrote: >> >> >>> Hi, >>> >>> we encountered a serious problem, when using Solaris NFS (Server) >>> accessing it with a CentOS5.1/RHEL5.1 client. >>> > > > > >> Which kernel version is being used? >> > > that'll be a 2.6.18 variant ;) > > there have been some, but not too many, reports of a trace like this: > http://www.kerneloops.org/search.php?search=__fput > at least 2.6.25-3 also reports it as a kernel bug, but doesn't panic any more ... i attached the whole dmesg to the mail ... regards Michael Lang ------------[ cut here ]------------ kernel BUG at fs/locks.c:2051! invalid opcode: 0000 [1] SMP CPU 1 Modules linked in: ipt_REJECT iptable_filter ip_tables bridge nfsd auth_rpcgss exportfs autofs4 hidp nfs lockd nfs_acl rfcomm l2cap bluetooth sunrpc raid1 dm_round_robin tun ip6t_REJECT xt_tcpudp ip6table_filter ip6_tables x_tables ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi scsi_transport_iscsi cpufreq_ondemand acpi_cpufreq ipv6 dm_multipath sbs sbshc battery acpi_memhotplug ac lp sg floppy ide_cd_mod cdrom serio_raw snd_hda_intel parport_pc snd_seq_dummy snd_seq_oss button parport snd_seq_midi_event snd_seq snd_seq_device 8139too 8139cp snd_pcm_oss i2c_i801 mii snd_mixer_oss snd_pcm i2c_core snd_timer snd pcspkr soundcore shpchp snd_page_alloc dm_snapshot dm_zero dm_mirror dm_mod ata_piix libata sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd [last unloaded: microcode] Pid: 4763, comm: python Not tainted 2.6.25.3 #1 RIP: 0010:[] [] locks_remove_flock+0xe2/0x102 RSP: 0018:ffff81000d1dfe38 EFLAGS: 00010246 RAX: 0000000000000081 RBX: ffff81000d31d2e8 RCX: ffff81001cc638c0 RDX: ffff81000f4101c0 RSI: 0000000000000286 RDI: ffffffff80580dc0 RBP: ffff810011232140 R08: ffff81001747aac0 R09: ffff81000d1dfb00 R10: 0000000000000004 R11: 000000200000001f R12: ffff81000d31d1e8 R13: ffff81000d31d1e8 R14: ffff81001ac4c680 R15: ffff81000df68220 FS: 00000000421e6940(0063) GS:ffff81001d979840(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000003335ebfe80 CR3: 000000000ee12000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process python (pid: 4763, threadinfo ffff81000d1de000, task ffff81000f4101c0) Stack: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffff810011232140 0000000000001299 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffff810011232140 Call Trace: [] ? __fput+0x97/0x17e [] ? sys_fcntl+0x2eb/0x2f7 [] ? tracesys+0xdc/0xe1 Code: 48 39 68 58 75 29 0f b6 40 60 a8 02 74 0a 48 89 df e8 5f fe ff ff eb 1a a8 20 74 0f be 02 00 00 00 48 89 df e8 e9 fe ff ff eb 07 <0f> 0b eb fe 48 89 c3 48 8b 03 48 85 c0 75 c6 e8 97 9d 1d 00 48 RIP [] locks_remove_flock+0xe2/0x102 RSP ---[ end trace e4d79afa854e3611 ]---