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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi All,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m using FC3 with 2.6.9 SMP Kernel. The root file
system is EXT3 and the volume is a XFS volume. While doing IO over a NFS v3
share, with ‘watch <span class=SpellE>df</span>’ running in parallel,
kernel panic at SLAB memory is noticed. When searching Internet, I also noticed
that similar KP are reported at <span class=SpellE>free_block</span> function;
but could not find fix for this.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>For me, this issue appears intermittently. It happens when doing
IO over 60 NFS shares.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>From the KP message it appears to be an issue in Linux SLAB
memory module. Can anyone suggest a solution for this issue? <span
style='mso-spacerun:yes'> </span>Is this issue already addressed in later
kernel like 2.6.12?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>------KP start------<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: Unable to
handle kernel paging request at virtual address 49bec98e<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>printing <span class=SpellE>eip</span>:<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: 02140b7c<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: *<span
class=SpellE>pde</span> = 00000000<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: Oops: 0002
[#1]<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: SMP<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: Modules
linked in: <span class=SpellE>xfs</span> i2c_i801 <span class=SpellE>bccfg</span>(U)
<span class=SpellE>dvm</span>(U) <span class=SpellE>sg</span> <span
class=SpellE>st</span> <span class=SpellE>osst</span> <span class=SpellE>nfsd</span>
<span class=SpellE>exportfs</span> <span class=SpellE>lockd</span> md5 ipv6
autofs4 i2c_dev i2c_core <span class=SpellE>sunrpc</span> <span class=SpellE>iptable_filter</span>
<span class=SpellE>ip_tables</span> <span class=SpellE>dm_mod</span> button
battery ac <span class=SpellE>sr_mod</span> <span class=SpellE>usb_storage</span>
<span class=SpellE>uhci_hcd</span> <span class=SpellE>ehci_hcd</span> e1000
floppy ext3 <span class=SpellE>jbd</span> <span class=SpellE>bcraid</span>
aic79xx <span class=SpellE>sd_mod</span> <span class=SpellE>scsi_mod</span><o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: CPU:<span
style='mso-spacerun:yes'> </span>3<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: EIP:<span
style='mso-spacerun:yes'> </span>0060:[<02140b7c>]<span
style='mso-spacerun:yes'> </span>Tainted: PF<span
style='mso-spacerun:yes'> </span>VLI<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: EFLAGS:
00010087<span style='mso-spacerun:yes'> </span>(2.6.9-1.667smp)<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: EIP is at
free_block+0x62/0xd6<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: <span
class=SpellE>eax</span>: 00000029<span style='mso-spacerun:yes'>
</span><span class=SpellE>ebx</span>: 41db3000<span
style='mso-spacerun:yes'> </span><span class=SpellE>ecx</span>:
03f1ccbb<span style='mso-spacerun:yes'> </span><span class=SpellE>edx</span>:
00000000<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: <span
class=SpellE>esi</span>: 41f6f280<span style='mso-spacerun:yes'>
</span><span class=SpellE>edi</span>: 0000003c<span
style='mso-spacerun:yes'> </span><span class=SpellE>ebp</span>:
00000011<span style='mso-spacerun:yes'> </span><span class=SpellE>esp</span>:
3e384e10<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: <span
class=SpellE>ds</span>: 007b<span style='mso-spacerun:yes'> </span><span
class=SpellE>es</span>: 007b<span style='mso-spacerun:yes'> </span><span
class=SpellE>ss</span>: 0068<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: Process <span
class=SpellE>atd</span> (<span class=SpellE>pid</span>: 2831, <span
class=SpellE>threadinfo</span>=3e384000 task=3e622930)<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: Stack:
41e0d010 39f19000 09fa4540 41e0d010 0000003c 02140c5e 41e0d000 41f6f280<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>41e0d000
09fa4540 41e0d010 00000202 0214102d 09fa4548 00000000 3f1bb808<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'>
</span>2674d1e0 42d02886 2674d1e0 41f47e00 3d5b2320 3d11ce8c 42d0291e 1a7b8880<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>: Call
Trace:<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<02140c5e>]
cache_flusharray+0x6e/0x9c<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<0214102d>] kfree+0x43/0x51<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<42d02886>]
free_rb_tree_fname+0x31/0x6c [ext3]<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<42d0291e>]
ext3_htree_free_dir_info+0x8/0x10 [ext3]<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<42d02cd3>]
ext3_release_dir+0xf/0x14 [ext3]<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<021549ca>] __fput+0x55/0x100<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<021536f4>] filp_close+0x59/0x5f<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<02121350>]
put_files_struct+0x57/0xc0<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<02121f4e>] do_exit+0x227/0x3bd<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<021221d2>] sys_exit_group+0x0/0xd<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<021294f8>]
get_signal_to_deliver+0x341/0x369<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<02105e6c>] do_signal+0x55/0xd5<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<0216396f>] filldir64+0x0/0x122<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<0214f08a>] rw_vm+0x27e/0x28c<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<0214f3a5>]
put_user_size+0x29/0x2d<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<02163b30>]
sys_getdents64+0x9f/0xa9<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>:<span
style='mso-spacerun:yes'> </span>[<02105f14>]
do_notify_resume+0x28/0x38<o:p></o:p></span></font></p>
<div style='border:none;border-bottom:solid windowtext 1.0pt;mso-border-bottom-alt:
solid windowtext .75pt;padding:0in 0in 0in 0in'>
<p class=MsoNormal style='border:none;mso-border-bottom-alt:solid windowtext .75pt;
padding:0in;mso-padding-alt:0in 0in 0in 0in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>kernel: Code: 1c 8b 53 04 8b 03 89
50 04 89 02 31 d2 2b 4b 0c c7 03 00 01 10 00 c7 43 04 00 02 20 00 89 c8 f7 b6
b0 00 <span class=SpellE>00</span> <span class=SpellE>00</span> 89 c1 0f b7 43
14 <66> 89 44 4b 18 8b 43 10 66 89 4b 14 48 85 c0 89 43 10 75 41 8b<o:p></o:p></span></font></p>
<p class=MsoNormal style='border:none;mso-border-bottom-alt:solid windowtext .75pt;
padding:0in;mso-padding-alt:0in 0in 0in 0in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>------ KP End ------<o:p></o:p></span></font></p>
<p class=MsoNormal style='border:none;mso-border-bottom-alt:solid windowtext .75pt;
padding:0in;mso-padding-alt:0in 0in 0in 0in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='border:none;mso-border-bottom-alt:solid windowtext .75pt;
padding:0in;mso-padding-alt:0in 0in 0in 0in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='border:none;mso-border-bottom-alt:solid windowtext .75pt;
padding:0in;mso-padding-alt:0in 0in 0in 0in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Thanks in Advance<o:p></o:p></span></font></p>
<p class=MsoNormal style='border:none;mso-border-bottom-alt:solid windowtext .75pt;
padding:0in;mso-padding-alt:0in 0in 0in 0in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Srikumar<o:p></o:p></span></font></p>
<p class=MsoNormal style='border:none;mso-border-bottom-alt:solid windowtext .75pt;
padding:0in;mso-padding-alt:0in 0in 0in 0in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='border:none;mso-border-bottom-alt:solid windowtext .75pt;
padding:0in;mso-padding-alt:0in 0in 0in 0in'><font size=3 face="Times New Roman"><span
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