What does "kernel BUG at fs/namei.c:2448!" means in /var/log/messages ?
Issue
~ Snippet of kernel stack trace from /var/log/messages
Jan 28 23:55:11 Server kernel: kernel BUG at fs/namei.c:2448!
Jan 28 23:55:11 Server kernel: invalid operand: 0000 [#1]
Jan 28 23:55:11 Server kernel: SMP
Jan 28 23:55:11 Server kernel: Modules linked in: nfs lockd nfs_acl sunrpc sg mptctl mptbase dell_rbu i2c_dev i2c_core ipmi_devintf ipmi_si ipmi_msghandler joydev sddlmfdrv(U) sddlmadrv(U) button battery ac uhci_hcd ehci_hcd hw_random shpchp bnx2 bonding(U) qla2400 qla2xxx scsi_transport_fc dm_snapshot dm_zero dm_mirror ext3 jbd linear dm_mod ata_piix libata megaraid_sas(U) sd_mod scsi_mod
Jan 28 23:55:11 Server kernel: CPU: 8
Jan 28 23:55:11 Server kernel: EIP: 0060:[<0216bdee>] Tainted: P VLI
Jan 28 23:55:11 Server kernel: EFLAGS: 00010246 (2.6.9-89.0.23.ELhugemem)
Jan 28 23:55:11 Server kernel: EIP is at page_put_link+0x26/0x46
Jan 28 23:55:11 Server kernel: eax: 00000000 ebx: 00000000 ecx: a4a02c00 edx: a9eac8b0
Jan 28 23:55:11 Server kernel: esi: 00000000 edi: ff003000 ebp: 6e8b7f0c esp: 6e8b7e78
Jan 28 23:55:11 Server kernel: ds: 007b es: 007b ss: 0068
Jan 28 23:55:11 Server kernel: Process httpd (pid: 11138, threadinfo=6e8b7000 task=b17c9630)
Jan 28 23:55:15 Server kernel: Stack: 6e8b7000 02168dc3 00000150 00000158 00000048 a4a02cc4 00000001 00000000
Jan 28 23:55:15 Server kernel: 6320a02a bf8f2280 a4a02cc4 e1a89347 00000008 6320a021 084b7ef8 c019aafc
Jan 28 23:55:15 Server kernel: c1a8af80 6e8b7f0c 00000001 0216941c 6320a000 6e8b7000 6e8b7f0c 6320a000
Call Trace:
Jan 28 23:55:15 server kernel: [<02168dc3>] __link_path_walk+0x602/0xc25
Jan 28 23:55:15 server kernel: [<0216941c>] link_path_walk+0x36/0xa1
Jan 28 23:55:15 server kernel: [<021697a1>] path_lookup+0x14b/0x183
Jan 28 23:55:15 server kernel: [<021698f9>] __user_walk+0x21/0x51
Jan 28 23:55:15 server kernel: [<02164a4f>] vfs_stat64+0x14/0x3a
Jan 28 23:55:15 server kernel: [<02164ff5>] sys_stat64+0xf/0x23
Jan 28 23:55:15 server kernel: [<02157e4b>] put_user_size+0x29/0x2d
Jan 28 23:55:15 server kernel: [<02126b27>] sys_gettimeofday+0x25/0x55
Environment
- RHEL 4
- Kernel 2.6.9-89.0.23
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