Messages in this thread | | | Date | Tue, 18 May 1999 00:37:11 -0400 | From | Brian Ristuccia <> | Subject | null pointer deref in kernel space 2.2.9 |
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While doing a scsi add-single-device to detect a SCSI device that wasn't powered up at boot time, I got the following oops. I have one aic7880 on my pr440fx mainboard and one AHA-2940A card.
Unable to handle kernel NULL pointer dereference at virtual address 00000000 current->tss.cr3 = 079b4000, %cr3 = 079b4000 *pde = 00000000 Oops: 0002 CPU: 12 EIP: 0010:[<c019ef9c>] EFLAGS: 00010246 eax: 00000000 ebx: 00000001 ecx: 00000046 edx: 00000000 esi: c0098000 edi: 00000000 ebp: 00000000 esp: cd205dc8 ds: 0018 es: 0018 ss: 0018 Process bash (pid: 778, process nr: 57, stackpage=cd205000) Stack: c0098000 00000000 cdb25000 cdb24000 cdb25000 00000000 c020c000 00000000 00000000 0000000c cd205dfc c011253e ffffffff c021cb1b 0000000a 00000002 cdb25000 cdb235ea c01940aa 00000000 cd205e28 00000000 c01e74a0 20000001 Call Trace: [<c011253e>] [<c01940aa>] [<c01e74a0>] [<c013dd13>] [<c0111034>] [<c01c0c43>] [<c01124cc>] [<c011253e>] [<c0112daf>] [<c0115c9b>] [<c01a1990>] [<c01dafc0>] [<c01a1a32>] [<c01a6ae6>] [<c01463ca>] [<c012781d>] [<c0146364>] [<c0109034>] Code: f3 ab 6a 08 6a 58 e8 5d 21 00 00 89 c7 89 7c 24 3c 83 c4 08
>>EIP: c019ef9c <scan_scsis+54/4a0> Trace: c011253e <wake_up_process+52/64> Trace: c01940aa <n_tty_receive_buf+d72/da8> Trace: c01e74a0 <RCSid+8c80/8e80> Trace: c013dd13 <inode_getblk+47/1cc> Trace: c0111034 <send_sig_info+174/2ec> Trace: c01c0c43 <vsprintf+333/36c> Trace: c01124cc <reschedule_idle+1bc/1dc> Trace: c011253e <wake_up_process+52/64> Trace: c012781d <sys_write+f1/124> Code: c019ef9c <scan_scsis+54/4a0> 00000000 <_EIP>: <=== Code: c019ef9c <scan_scsis+54/4a0> 0: f3 ab repz stosl %eax,%es:(%edi) <=== Code: c019ef9e <scan_scsis+56/4a0> 2: 6a 08 pushl $0x8 Code: c019efa0 <scan_scsis+58/4a0> 4: 6a 58 pushl $0x58 Code: c019efa2 <scan_scsis+5a/4a0> 6: e8 5d 21 00 00 call c01a1104 <scsi_init_malloc+0/68> Code: c019efa7 <scan_scsis+5f/4a0> b: 89 c7 movl %eax,%edi Code: c019efa9 <scan_scsis+61/4a0> d: 89 7c 24 3c movl %edi,0x3c(%esp,1) Code: c019efad <scan_scsis+65/4a0> 11: 83 c4 08 addl $0x8,%esp
15 warnings issued. Results may not be reliable.
-- Brian Ristuccia brianr@osiris.978.org bristucc@nortelnetworks.com bristucc@cs.uml.edu
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