[8503] in linux-scsi channel archive
Segmentation fault
daemon@ATHENA.MIT.EDU (Stanley Wu)
Thu Mar 30 12:08:32 2000
Message-ID: <20000330170503.369.qmail@web3505.mail.yahoo.com>
Date: Thu, 30 Mar 2000 09:05:03 -0800 (PST)
From: Stanley Wu <wudragon2@yahoo.com>
To: linux-scsi@vger.rutgers.edu
MIME-Version: 1.0
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I'm getting this wierd error when I try to save the
SCpnt->result after i/o is completed. I thought it
might be my pointer to storage area problem from
kmalloc. But I'm still getting the same error even if
I save SCpnt->result to a rc which is locally declared
int type. I can use printk to print both the
SCpnt->result and rc fine.
Attached is the Oops... Need help.
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Mar 30 08:48:25 wusy kernel: Unable to handle kernel NULL pointer dereference at virtual address 000000e5
Mar 30 08:48:25 wusy kernel: current->tss.cr3 = 056f3000, %cr3 = 056f3000
Mar 30 08:48:25 wusy kernel: *pde = 00000000
Mar 30 08:48:25 wusy kernel: Oops: 0002
Mar 30 08:48:25 wusy kernel: CPU: 0
Mar 30 08:48:25 wusy kernel: EIP: 0010:[sys_ioctl+82/484]
Mar 30 08:48:25 wusy kernel: EFLAGS: 00010206
Mar 30 08:48:25 wusy kernel: eax: c512a400 ebx: 000000c9 ecx: 00000004 edx: c57a16c0
Mar 30 08:48:25 wusy kernel: esi: fffffff7 edi: bfffefe0 ebp: 40086d07 esp: c1987fa4
Mar 30 08:48:25 wusy kernel: ds: 0018 es: 0018 ss: 0018
Mar 30 08:48:25 wusy kernel: Process mttest (pid: 2233, process nr: 42, stackpage=c1987000)
Mar 30 08:48:25 wusy kernel: Stack: 00000008 bfffefe0 bfffefe8 00000000 c57a16c0 c0107b55 c1986000 c0107a50
Mar 30 08:48:25 wusy kernel: 00000004 40086d07 bfffefe0 40104c60 00000008 bfffefe0 00000036 0000002b
Mar 30 08:48:25 wusy kernel: 0000002b 00000036 400c2f24 00000023 00000202 bfffef94 0000002b
Mar 30 08:48:25 wusy kernel: Call Trace: [error_code+45/52] [system_call+52/56]
Mar 30 08:48:25 wusy kernel: Code: ff 43 1c 85 db 0f 84 6a 01 00 00 31 f6 81 fd 50 54 00 00 74
Mar 30 08:48:25 wusy kernel: Unable to handle kernel NULL pointer dereference at virtual address 000000d1
Mar 30 08:48:25 wusy kernel: current->tss.cr3 = 00101000, %cr3 = 00101000
Mar 30 08:48:25 wusy kernel: *pde = 00000000
Mar 30 08:48:25 wusy kernel: Oops: 0000
Mar 30 08:48:25 wusy kernel: CPU: 0
Mar 30 08:48:25 wusy kernel: EIP: 0010:[filp_close+7/92]
Mar 30 08:48:25 wusy kernel: EFLAGS: 00010206
Mar 30 08:48:25 wusy kernel: eax: c512a400 ebx: 000000c9 ecx: c3028440 edx: 000000c9
Mar 30 08:48:25 wusy kernel: esi: 00000004 edi: c57a16c0 ebp: 00000001 esp: c1987f00
Mar 30 08:48:25 wusy kernel: ds: 0018 es: 0018 ss: 0018
Mar 30 08:48:25 wusy kernel: Process mttest (pid: 2233, process nr: 42, stackpage=c1987000)
Mar 30 08:48:25 wusy kernel: Stack: c57a16c0 c0118239 000000c9 c57a16c0 c1987f68 c1986000 000000e5 08048000
Mar 30 08:48:25 wusy kernel: c57a16c0 c1986000 c0107f3b 0000000b 00000000 c010ef30 c01dc8ae c1987f68
Mar 30 08:48:25 wusy kernel: 00000002 c1986000 fffffff7 bfffefe0 40086d07 c56f3080 c61d82d8 c0107b55
Mar 30 08:48:25 wusy kernel: Call Trace: [do_exit+349/728] [die+83/84] [do_page_fault+712/912] [lk_lockmsg+5710/5984] [error_code+45/52] [sys_ioctl+82/484] [error_code+45/52]
Mar 30 08:48:25 wusy kernel: [system_call+52/56]
Mar 30 08:48:25 wusy kernel: Code: 8b 7b 08 83 7b 1c 00 75 10 68 82 f0 1d c0 e8 be e1 fe ff 31
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