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Subjectstate D in 2.5.67-ac2 and 2.5.68-mm1
Date
Hi,all:
My 2.5.67-ac2 and 2.5.68-mm1 kernel have much processes with state D when I run postgresql.
I used devfsd and ext3 filesystem.My linux is redhat9.0.
The other question is pdflush would be a zombie if there have much "D" process.
oops is:
Apr 21 13:48:09 hv kernel: <1>Unable to handle kernel paging request at virtual address 297c9b10
Apr 21 13:48:09 hv kernel: printing eip:
Apr 21 13:48:09 hv kernel: c03f2668
Apr 21 13:48:09 hv kernel: *pde = 00000000
Apr 21 13:48:09 hv kernel: Oops: 0002 [#2]
Apr 21 13:48:09 hv kernel: CPU: 0
Apr 21 13:48:10 hv kernel: EIP: 0060:[<c03f2668>] Not tainted VLI
Apr 21 13:48:10 hv kernel: EFLAGS: 00010286
Apr 21 13:48:10 hv kernel: eax: 00000000 ebx: c0138ad0 ecx: 00000000 edx:
00000000
Apr 21 13:48:10 hv kernel: esi: 00000000 edi: 00000000 ebp: 00000000 esp:
e34abff8
Apr 21 13:48:10 hv kernel: ds: 007b es: 007b ss: 0068
Apr 21 13:48:10 hv kernel: Process pdflush (pid: 5612, threadinfo=e34aa000 task=f44f2180)
Apr 21 13:48:10 hv kernel: Stack: 00000000 00000000
Apr 21 13:48:11 hv kernel: Call Trace:
Apr 21 13:48:11 hv kernel: Code: 69 69 0d 00 00 00 00 9b 8e 04 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <d2> b4 03 40 10 69 69 0d 00 00 00 00 6d b4 03 40 c8 b4 03 40 11

ksymoops result is:
ksymoops 2.4.9 on i686 2.5.68-mm1. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.5.68-mm1/ (default)
-m /boot/System.map (specified)

Error (regular_file): read_ksyms stat /proc/ksyms failed
No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Apr 21 13:48:09 hv kernel: <1>Unable to handle kernel paging request at virtual address 297c9b10
Apr 21 13:48:09 hv kernel: c03f2668
Apr 21 13:48:09 hv kernel: *pde = 00000000
Apr 21 13:48:09 hv kernel: Oops: 0002 [#2]
Apr 21 13:48:09 hv kernel: CPU: 0
Apr 21 13:48:10 hv kernel: EIP: 0060:[<c03f2668>] Not tainted VLI
Using defaults from ksymoops -t elf32-i386 -a i386
Apr 21 13:48:10 hv kernel: EFLAGS: 00010286
Apr 21 13:48:10 hv kernel: eax: 00000000 ebx: c0138ad0 ecx: 00000000 edx:
Warning (Oops_set_regs): garbage 'edx:' at end of register line ignored
00000000
Apr 21 13:48:10 hv kernel: esi: 00000000 edi: 00000000 ebp: 00000000 esp:
Warning (Oops_set_regs): garbage 'esp:' at end of register line ignored
e34abff8
Apr 21 13:48:10 hv kernel: ds: 007b es: 007b ss: 0068
Apr 21 13:48:10 hv kernel: Stack: 00000000 00000000
Apr 21 13:48:11 hv kernel: Call Trace:
Apr 21 13:48:11 hv kernel: Code: 69 69 0d 00 00 00 00 9b 8e 04 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <d2> b4 03 40 10 69 69 0d 00 00 00 00 6d b4 03 40 c8 b4 03 40 11


>>EIP; c03f2668 <pci_vendor_list+23e8/4e18> <=====

>>ebx; c0138ad0 <pdflush+0/13>

This architecture has variable length instructions, decoding before eip
is unreliable, take these instructions with a pinch of salt.

Code; c03f263d <pci_vendor_list+23bd/4e18>
00000000 <_EIP>:
Code; c03f263d <pci_vendor_list+23bd/4e18>
0: 69 69 0d 00 00 00 00 imul $0x0,0xd(%ecx),%ebp
Code; c03f2644 <pci_vendor_list+23c4/4e18>
7: 9b fwait
Code; c03f2645 <pci_vendor_list+23c5/4e18>
8: 8e 04 08 movl (%eax,%ecx,1),%es

This decode from eip onwards should be reliable

Code; c03f2668 <pci_vendor_list+23e8/4e18>
00000000 <_EIP>:
Code; c03f2668 <pci_vendor_list+23e8/4e18> <=====
0: d2 (bad) <=====
Code; c03f2669 <pci_vendor_list+23e9/4e18>
1: b4 03 mov $0x3,%ah
Code; c03f266b <pci_vendor_list+23eb/4e18>
3: 40 inc %eax
Code; c03f266c <pci_vendor_list+23ec/4e18>
4: 10 69 69 adc %ch,0x69(%ecx)
Code; c03f266f <pci_vendor_list+23ef/4e18>
7: 0d 00 00 00 00 or $0x0,%eax
Code; c03f2674 <pci_vendor_list+23f4/4e18>
c: 6d insl (%dx),%es:(%edi)
Code; c03f2675 <pci_vendor_list+23f5/4e18>
d: b4 03 mov $0x3,%ah
Code; c03f2677 <pci_vendor_list+23f7/4e18>
f: 40 inc %eax
Code; c03f2678 <pci_vendor_list+23f8/4e18>
10: c8 b4 03 40 enter $0x3b4,$0x40
Code; c03f267c <pci_vendor_list+23fc/4e18>
14: 11 .byte 0x11


2 warnings and 1 error issued. Results may not be reliable.
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