Description of problem: RHEL installed on HP 570 ML-2 Unable to handle kernel NULL pointer dereference at virtual address 000001b8 printing eip: c018548c *pde = 194f8001 Oops: 0000 [#1] SMP Modules linked in: nfsd exportfs md5 ipv6 parport_pc lp parport netconsole netdump autofs4 i2c_dev i2c_core nfs lockd nfs_acl sunrpc dm_mirror dm_mod button battery ac ohci_hcd shpchp cpqphp e100 mii tg3 e1000 floppy ext3 jbd cciss aic7xxx sd_mod scsi_mod CPU: 4 EIP: 0060:[<c018548c>] Not tainted VLI EFLAGS: 00010246 (2.6.9-34.ELsmp) EIP is at show_map+0x70/0x111 eax: 00000000 ebx: d566d7ac ecx: 00000000 edx: f06cd930 esi: 00100073 edi: f71dcc00 ebp: 00000000 esp: ef7adf24 ds: 007b es: 007b ss: 0068 Process lsof (pid: 20275, threadinfo=ef7ad000 task=efa3b2b0) Stack: 00000070 b7b8e000 00000000 00000000 00000000 ef7adf40 f06cd930 c032c980 c032c980 f71dcc00 00000000 d566d7ac c0174680 00000106 0000002d 000003d3 b7f4902d 00000014 00000000 00000013 00000000 c032ce60 c9a66d80 00000400 Call Trace: [<c0174680>] seq_read+0x1c7/0x2c2 [<c015a43d>] vfs_read+0xb6/0xe2 [<c015a650>] sys_read+0x3c/0x62 [<c02d2657>] syscall_call+0x7/0xb [<c02d007b>] schedule+0x32f/0x8d3 Code: c1 e0 0c 50 89 f0 24 80 3c 01 19 c0 83 e0 fd 83 c0 73 f7 c6 04 00 00 00 50 75 1b 83 3d bc 11 41 c0 00 75 19 8b 54 24 18 8b 42 70 <8b> 80 b8 01 00 00 39 43 04 73 07 b8 78 00 00 00 eb 05 b8 2d 00 Version-Release number of selected component (if applicable): Red Hat Enterprise Linux AS release 4 (Nahant Update 3) How reproducible: random Steps to Reproduce: I don't know Actual results: Expected results: Additional info:
This should be resolved with the following errata: http://rhn.redhat.com/errata/RHSA-2006-0493.html * a flaw in the virtual memory implementation that allowed local user to cause a denial of service (panic) by using the lsof command *** This bug has been marked as a duplicate of bug 189260 ***