Most recent kernel where this bug did not occur: don't know Distribution: Debian Stable with backports.org (2.6.16-2-486 #2) Hardware Environment: VIA EPIA C3 600MHz, 256MB SDRAM Software Environment: lufs 0.9.7-6 Problem Description: kernel BUG at fs/inode.c:253! invalid opcode: 0000 [#10] Modules linked in: ipv6 nfsd exportfs lockd nfs_acl sunrpc xt_tcpudp iptable_mangle iptable_nat ip_nat xt_state ipt_REJECT ip_conntrack_ftp ip_conntrack_irc iptable_filter ip_conntrack nfnetlink ip_tables x_tables autofs4 fuse cpufreq_userspace lufs sr_mod sbp2 scsi_mod ide_generic ide_cd cdrom eth1394 shpchp pci_hotplug evdev psmouse via_ircc serio_raw pcspkr via_agp rtc agpgart floppy irda crc_ccitt ext3 jbd ide_disk ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore via82cxxx generic ide_core via_rhine mii thermal processor fan CPU: 0 EIP: 0060:[<b015c0c8>] Not tainted VLI EFLAGS: 00010206 (2.6.16-2-486 #2) EIP is at clear_inode+0x16/0xe4 eax: bb9acbcc ebx: bb9acbcc ecx: bb9acbcc edx: bb9acbcc esi: bfaf526d edi: 00000080 ebp: befeeaa0 esp: b3537c44 ds: 007b es: 007b ss: 0068 Process proftpd (pid: 15401, threadinfo=b3536000 task=beee1a70) Stack: <0>bb9acbcc bfaf526d b015cbe4 bb9acbcc bb9acbcc bc2190c0 b015cdcb bb9acbcc bc2190b4 b015ae4e bb9acbcc 00000640 00000000 00000080 b015b0ff 00000080 b0137bd3 00000080 000201d2 00000000 000201d2 0004b000 00000000 00000640 Call Trace: [<bfaf526d>] lu_delete_inode+0x0/0x5 [lufs] [<b015cbe4>] generic_delete_inode+0x9d/0xfb [<b015cdcb>] iput+0x64/0x67 [<b015ae4e>] prune_dcache+0xcf/0xf1 [<b015b0ff>] shrink_dcache_memory+0x18/0x30 [<b0137bd3>] shrink_slab+0x135/0x1a4 [<b01389ac>] try_to_free_pages+0xe9/0x19b [<b0134eb1>] __alloc_pages+0x15f/0x25f [<b0136a8a>] __do_page_cache_readahead+0x8b/0xe9 [<b0136be2>] blockable_page_cache_readahead+0x46/0x96 [<b0136cac>] make_ahead_window+0x7a/0x97 [<b0136dc4>] page_cache_readahead+0xfb/0x107 [<b0131977>] do_generic_mapping_read+0xff/0x3b1 [<b0221774>] sock_aio_write+0x56/0x64 [<b0131e5b>] __generic_file_aio_read+0x16b/0x1a2 [<b0131c29>] file_read_actor+0x0/0xc7 [<b0131f8c>] generic_file_read+0xae/0xc7 [<b01584a0>] locks_free_lock+0x81/0x85 [<b0125056>] autoremove_wake_function+0x0/0x3a [<b02241fb>] sock_common_setsockopt+0x1e/0x22 [<bfaf6388>] lu_file_read+0x24/0x29 [lufs] [<b01483d7>] vfs_read+0xa6/0x13c [<b01486d7>] sys_read+0x3b/0x63 [<b01029c9>] syscall_call+0x7/0xb Code: c7 42 04 c4 92 2d b0 89 15 c4 92 2d b0 ff 0d 08 e6 37 b0 5b c3 56 53 8b 5c 24 0c 53 e8 dc dd fe ff 83 bb c4 00 00 00 00 58 74 08 <0f> 0b fd 00 e0 04 2a b0 8b 83 28 01 00 00 a8 10 75 08 0f 0b ff <3>(lu_execute) - failed to connect! Steps to reproduce: Seems to be reproducable when extensively using LUFS with mounted FTP filesystem. This mounted filesystem is the available via local FTP server. Start downloading from the FTP server with at least two machines (or connections). Then this bug occurs occasionaly. I know LUFS is obsoleted, but FTPFS in FUSE is unusable and CurlFTPfs, which is promising, drains all your memory when used with local FTP or SMB server
LUFS is not in mainline. Send bugreport to LUFS developers.