Actually this only occurs when accessing the Samba share from a Windows box. The CIFS client in RHEL5 does not cause the reported crash on the server. Dunno if that helps. Daire ----- "Daire Byrne" <Daire.Byrne@xxxxxxxxxxxxxx> wrote: > Hi, > > I'm trying out FS-Cache on a RHEL5.2 server but I get the following > when I try to access the cached NFS mountpoint through a samba export. > The server mounts another NFS server an then re-exports it via Samba. > There were reports of similar crashes in nfs_fscache_release_page on > the list in the past but I don't think there was any particular > solution/patch offered. Should I abandon the RHEL5 kernel and use the > latest patches against a newer kernel? Is this bug likely to have been > addressed? > > Regards, > > Daire > > ----------- [cut here ] --------- [please bite here ] --------- > Kernel BUG at fs/nfs/fscache.h:267 > invalid opcode: 0000 [1] SMP > last sysfs file: /devices/pci0000:00/0000:00:03.0/class > CPU 0 > Modules linked in: cachefiles cpqci(P) mptctl ipmi_devintf ipmi_si > ipmi_msghandler loop nfsd exportfs autofs4 mgc lustre lov mdc lquota > osc ksocklnd ptlrpc obdclass lnet lvfs libcfs myri10ge dm_mirror > dm_mod sr_mod cdrom sg i2c > _piix4 pata_serverworks i2c_core ata_generic k8_edac k8temp edac_mc > serio_raw hwmon ahci sata_nv libata mptscsih mptbase cciss sd_mod > scsi_mod ext3 jbd > Pid: 23790, comm: smbd Tainted: P 2.6.18-92.1.6.el5.R10.fscfc #1 > RIP: 0010:[<ffffffff801019f7>] [<ffffffff801019f7>] > nfs_fscache_release_page+0x1e/0x5e > RSP: 0018:ffff810143401c98 EFLAGS: 00010246 > RAX: ffff81021a056810 RBX: ffff8101015ac6a8 RCX: 0000000000000001 > RDX: 0000000000000000 RSI: ffff810143401c68 RDI: ffff8101015ac6a8 > RBP: ffff81021a056700 R08: 0000000000000001 R09: 000000000000000d > R10: ffff81006306c2d8 R11: ffffffff80101a37 R12: ffff81021a056810 > R13: 0000000000000000 R14: 0000000000000001 R15: ffffffffffffffff > FS: 00002ab079dc3dc0(0000) GS:ffffffff80449000(0000) > knlGS:00000000f7eec6c0 > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > CR2: 00002aeb1a733000 CR3: 00000002003b8000 CR4: 00000000000006e0 > Process smbd (pid: 23790, threadinfo ffff810143400000, task > ffff8100346b2080) > Stack: 0000000000000000 ffff8101015ac6a8 0000000000000000 > ffffffff80101a74 > 0000000000000000 ffff8101015ac6a8 0000000000000000 ffffffff800ae0b6 > 0000000043401d18 0000000000000000 000000000000000e 0000000000000000 > Call Trace: > [<ffffffff80101a74>] nfs_release_page+0x3d/0x4d > [<ffffffff800ae0b6>] invalidate_inode_pages2_range+0x122/0x21a > [<ffffffff801040a9>] nfs_revalidate_mapping+0xac/0x1a6 > [<ffffffff80102250>] nfs_file_read+0x45/0x97 > [<ffffffff8000c78e>] do_sync_read+0xc7/0x104 > [<ffffffff800caeb4>] __posix_lock_file_conf+0x376/0x3be > [<ffffffff800945b7>] autoremove_wake_function+0x0/0x2e > [<ffffffff800377a5>] fcntl_setlk+0x223/0x253 > [<ffffffff8000b080>] vfs_read+0xaa/0x150 > [<ffffffff80011dde>] sys_pread64+0x50/0x70 > [<ffffffff8002cacf>] sys_fcntl+0x2b1/0x2bd > [<ffffffff8000b080>] vfs_read+0xaa/0x150 > [<ffffffff80011dde>] sys_pread64+0x50/0x70 > [<ffffffff8002cacf>] sys_fcntl+0x2b1/0x2bd > [<ffffffff80059116>] system_call+0x7e/0x83 > > > Code: 0f 0b 68 03 23 32 80 c2 0b 01 8b 03 f6 c4 01 74 0d be 08 00 > RIP [<ffffffff801019f7>] nfs_fscache_release_page+0x1e/0x5e > RSP <ffff810143401c98> > <0>Kernel panic - not syncing: Fatal exception > <0>Rebooting in 3 seconds.. -- Linux-cachefs mailing list Linux-cachefs@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cachefs
