2.3.99pre4 Oops on boot...

From: Michael H. Warfield (mhw@wittsend.com)
Date: Tue Apr 11 2000 - 16:26:45 EST


Hello,

        Just updated from 2.3.99pre3 to 2.3.99pre4 and did a make oldconfig
against the 2.3.99pre3 .config file. Resulting boot image blows an oops
at boot up just after freeing kernel memory.

        System is a single processor Pentium III 450 Mhz with 256Meg Ram.
System keyboard and mouse are on USB. Drives are all SCSI. Kernel is
build with devfs but it is not mounted at boot.

        Attached below is the Oops and the ksymoops translation.

        Mike

-- 
 Michael H. Warfield    |  (770) 985-6132   |  mhw@WittsEnd.com
  (The Mad Wizard)      |  (770) 331-2437   |  http://www.wittsend.com/mhw/
  NIC whois:  MHW9      |  An optimist believes we live in the best of all
 PGP Key: 0xDF1DD471    |  possible worlds.  A pessimist is sure of it!

============================================================================== devfs: 0.93 (20000306) Richard Gooch (rgooch@atuf.csiro.au) devfs: boot_options: 0x2 kmem_create: Forcing size word alignment - nfs_fh VFS: Mounted root (ext2 filesystem) readonly Freeing unused kernel memory: 156k freed Unable to handle kernel paging request at virtual address 656c6f95 printing eip: c0137034 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[<c0137034>] EFLAGS: 00010202 eax: 00000000 ebx: ffffffd8 ecx: c14c3000 edx: c14c3000 esi: 656cbf73 edi: 00000000 ebp: 00000000 esp: cfff3f50 ds: 0018 es: 0018 ss: 0018 Process swapper (pid: 1, stackpage=cfff3000) Stack: 00000002 c14c3000 c0105000 00000c00 c02cda38 c14c3000 00000006 c012bb66 c14c3000 00000003 00000000 cfff3f84 00000000 c14c3000 c025d025 00000000 00000000 00000000 c012be1b c14c3000 00000002 00000000 cfff2000 c02e9fdc Call Trace: [<c0105000>] [<c012bb66>] [<c025d025>] [<c012be1b>] [<c0109a44>] [<c025d025>] [<c0105000>] [<c010018>] [<c0260018>] [<c01070b3>] [<c0107953>] Code: 66 8b 46 22 25 00 f0 ff ff 66 3d 00 a0 0f 84 99 01 00 00 bb

============================================================================== ksymoops 2.3.4 on i686 2.3.99-pre3. Options used -v /usr/src/linux/vmlinux (specified) -K (specified) -L (specified) -o /lib/modules/2.3.99-pre3/ (default) -m /boot/System.map (specified)

No modules in ksyms, skipping objects Unable to handle kernel paging request at virtual address 656c6f95 c0137034 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[<c0137034>] Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010202 eax: 00000000 ebx: ffffffd8 ecx: c14c3000 edx: c14c3000 esi: 656cbf73 edi: 00000000 ebp: 00000000 esp: cfff3f50 ds: 0018 es: 0018 ss: 0018 Process swapper (pid: 1, stackpage=cfff3000) Stack: 00000002 c14c3000 c0105000 00000c00 c02cda38 c14c3000 00000006 c012bb66 c14c3000 00000003 00000000 cfff3f84 00000000 c14c3000 c025d025 00000000 00000000 00000000 c012be1b c14c3000 00000002 00000000 cfff2000 c02e9fdc Call Trace: [<c0105000>] [<c012bb66>] [<c025d025>] [<c012be1b>] [<c0109a44>] [<c025d025>] [<c0105000>] [<c010018>] [<c0260018>] [<c01070b3>] [<c0107953>] Code: 66 8b 46 22 25 00 f0 ff ff 66 3d 00 a0 0f 84 99 01 00 00 bb

>>EIP; c0137034 <open_namei+450/614> <===== Trace; c0105000 <empty_bad_page+0/1000> Trace; c012bb66 <filp_open+2e/4c> Trace; c025d025 <stext_lock+2025/3e50> Trace; c012be1b <sys_open+37/d0> Trace; c0109a44 <system_call+34/40> Trace; c025d025 <stext_lock+2025/3e50> Trace; c0105000 <empty_bad_page+0/1000> Trace; 0c010018 Before first symbol Trace; c0260018 <IRQ0x0f_interrupt+10b8/5a4c> Trace; c01070b3 <init+1f/14c> Trace; c0107953 <kernel_thread+23/30> Code; c0137034 <open_namei+450/614> 00000000 <_EIP>: Code; c0137034 <open_namei+450/614> <===== 0: 66 8b 46 22 movw 0x22(%esi),%ax <===== Code; c0137038 <open_namei+454/614> 4: 25 00 f0 ff ff andl $0xfffff000,%eax Code; c013703d <open_namei+459/614> 9: 66 3d 00 a0 cmpw $0xa000,%ax Code; c0137041 <open_namei+45d/614> d: 0f 84 99 01 00 00 je 1ac <_EIP+0x1ac> c01371e0 <open_namei+5fc/614> Code; c0137047 <open_namei+463/614> 13: bb 00 00 00 00 movl $0x0,%ebx

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