Bruce,
I guess I won't be able to help much on this as it looks like this is not a 
driver issue. I believe that the system is not configured correctly.
Have you tried any other nic?
-Tushar

>-----Original Message-----
>From: [email protected] [mailto:[email protected]]
>Sent: Tuesday, May 21, 2013 12:55 PM
>To: Dave, Tushar N
>Cc: [email protected]; Dave, Tushar N
>Subject: RE: [E1000-devel] IGB device support question
>
>Hi Tushar,
>
>I was curious if you had a chance to look at the stuff I sent and had any
>suggestions as to what I could to do to try and figure out what's going
>on.
>
>Thanks.
>
>Bruce
>
>"Dave, Tushar N" <[email protected]> wrote on 05/16/2013 01:46:39
>PM:
>
>> From: "Dave, Tushar N" <[email protected]>
>> To: "Dave, Tushar N" <[email protected]>,
>> "[email protected]" <[email protected]>, "e1000-
>> [email protected]" <[email protected]>
>> Date: 05/16/2013 01:46 PM
>> Subject: RE: [E1000-devel] IGB device support question
>>
>> Something is really wrong here. Although I see that e1000 is in call
>> trace I doubt if it is driver only issue. Please tell me more about
>> your system. Are you running customized kernel? Are you using any kind
>> of virtual environment?
>> Please send uname -a, lspci, dmeg output.
>>
>> -Tushar
>>
>> >>-----Original Message-----
>> >>From: [email protected] [mailto:[email protected]]
>> >>Sent: Thursday, May 16, 2013 1:24 PM
>> >>To: Dave, Tushar N
>> >>Cc: [email protected]
>> >>Subject: RE: [E1000-devel] IGB device support question
>> >>
>> >>Tushar,
>> >>
>> >>Yes this is system specific.  I get multiple types of panics.  I've
>> >>attached the two most common, 90% of the time it's one of these two.
>> >>All I have to do to cause this to happen is "ifconfig eth0 down;
>> >>ifconfig eth0 up".  As soon as it execute the up command the kernel
>> >panics.
>> >>
>> >>1st panic dump:
>> >>
>> >># ifconfig eth0 down
>> >># ifconfig eth0 up
>> >># ADDRCONF(NETDEV_UP): bond0: link is not ready
>> >>bonding: bond0 is being deleted...
>> >>e1000: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
>> >>ADDRCONF(NETDEV_UP): eth0: link is not ready
>> >>ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
>> >>ADDRCONF(NETDEV_UP): eth1: link is not ready
>> >>ADDRCONF(NETDEV_UP): eth2: link is not ready
>> >>eth0: no IPv6 routers present
>> >>usb0: no IPv6 routers present
>> >>e1000: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
>> >>ADDRCONF(NETDEV_UP): eth0: link is not ready
>> >>ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready Unable to handle
>> >>kernel paging request for data at address 0x801504b0 Faulting
>> >>instruction
>> >>address: 0xc0014038
>> >>Oops: Kernel access of bad area, sig: 11 [#1] PREEMPT SEL35xx
>> >>Platform Modules linked in:
>> >>NIP: c0014038 LR: c020a5a8 CTR: 0000000a
>> >>REGS: ed395d40 TRAP: 0300   Not tainted  (3.0.36-rt58)
>> >>MSR: 00009032 <EE,ME,IR,DR>  CR: 24048082  XER: 20000000
>> >>DAR: 801504b0, DSISR: 20000000
>> >>TASK = eeab5240[6322] 'irq/20-eth0' THREAD: ed394000
>> >>GPR00: 00000000 ed395df0 eeab5240 eeb57e20 801504ac 00000052
>> >>eeb57e1c 0000000a
>> >>GPR08: eeab5240 eeb57e22 ee9bd160 eeb57e20 24042082 10087a48
>> >>ed395e78
>> >>ed06f414
>> >>GPR16: 00000000 00000000 00000001 ef04e000 ed752d00 ed06f000
>> >>00000023
>> >>00000052
>> >>GPR24: ed752cf0 ef081120 00000050 000000d0 f32249e0 ee6a97a0
>> >>ed06f3a0
>> >>ee9bd160
>> >>NIP [c0014038] memcpy+0x1c/0x9c
>> >>LR [c020a5a8] e1000_clean_rx_irq+0x27c/0x3ac Call Trace:
>> >>[ed395df0] [c020a578] e1000_clean_rx_irq+0x24c/0x3ac (unreliable)
>> >>[ed395e60] [c020b240] e1000_clean+0x340/0x4ec [ed395ec0] [c02866ec]
>> >>net_rx_action+0xc4/0x208 [ed395ef0] [c00251c0]
>> >>__do_softirq_common+0xb0/0x148 [ed395f30] [c0025884]
>> >>local_bh_enable+0x88/0xe8 [ed395f50] [c005b4e0]
>> >>irq_forced_thread_fn+0x5c/0x74 [ed395f70] [c005c34c]
>> >>irq_thread+0xdc/0x1e0 [ed395fa0] [c003aa6c] kthread+0x78/0x7c
>> >>[ed395ff0] [c000d618]
>> >>kernel_thread+0x4c/0x68 Instruction dump:
>> >>38c60001 4200fff0 4e800020 7c032040 418100a0 54a7e8ff 38c3fffc
>3884fffc
>> >>41820028 70c00003 7ce903a6 40820054 <80e40004> 85040008 90e60004
>> >>95060008
>> >>
>> >>
>> >>2nd panic dump:
>> >>
>> >># ifconfig eth0 down
>> >># ifconfig eth0 up
>> >># mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c40] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c80]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755cb0] [c007a348]
>> >>unmap_vmas+0x388/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490] mmput+0x3c/0xf8 [ed755da0] [c0021a38]
>> >>exit_mm+0x128/0x13c [ed755dd0] [c0023224] do_exit+0x19c/0x5d8
>> >>[ed755e10] [c00236e0] do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:ffffffff pmd:2ea24000
>> >>addr:48410000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:3df
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c30] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c70]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755ca0] [c0077bc8]
>> >>vm_normal_page+0x58/0x84 [ed755cb0] [c007a16c]
>> >>unmap_vmas+0x1ac/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490]
>> >>mmput+0x3c/0xf8 [ed755da0] [c0021a38] exit_mm+0x128/0x13c [ed755dd0]
>> >>[c0023224] do_exit+0x19c/0x5d8 [ed755e10] [c00236e0]
>> >>do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:801504b2 pmd:2ea24000
>> >>addr:48411000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:3e0
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c40] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c80]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755cb0] [c007a348]
>> >>unmap_vmas+0x388/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490] mmput+0x3c/0xf8 [ed755da0] [c0021a38]
>> >>exit_mm+0x128/0x13c [ed755dd0] [c0023224] do_exit+0x19c/0x5d8
>> >>[ed755e10] [c00236e0] do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:002ea839 pmd:2ea24000
>> >>addr:48412000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:3e1
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c30] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c70]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755ca0] [c0077bc8]
>> >>vm_normal_page+0x58/0x84 [ed755cb0] [c007a16c]
>> >>unmap_vmas+0x1ac/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490]
>> >>mmput+0x3c/0xf8 [ed755da0] [c0021a38] exit_mm+0x128/0x13c [ed755dd0]
>> >>[c0023224] do_exit+0x19c/0x5d8 [ed755e10] [c00236e0]
>> >>do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:002d5333 pmd:2ea24000
>> >>page:c0802aa0 count:-1 mapcount:-2 mapping:  (null) index:0x0 page
>flags:
>> >>0x404(referenced|reserved)
>> >>addr:48413000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:3e2
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c40] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c80]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755cb0] [c007a2d0]
>> >>unmap_vmas+0x310/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490] mmput+0x3c/0xf8 [ed755da0] [c0021a38]
>> >>exit_mm+0x128/0x13c [ed755dd0] [c0023224] do_exit+0x19c/0x5d8
>> >>[ed755e10] [c00236e0] do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:01000000 pmd:2ea24000
>> >>addr:48415000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:3e4
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c40] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c80]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755cb0] [c007a348]
>> >>unmap_vmas+0x388/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490] mmput+0x3c/0xf8 [ed755da0] [c0021a38]
>> >>exit_mm+0x128/0x13c [ed755dd0] [c0023224] do_exit+0x19c/0x5d8
>> >>[ed755e10] [c00236e0] do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:07002600 pmd:2ea24000
>> >>addr:48416000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:3e5
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c40] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c80]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755cb0] [c007a348]
>> >>unmap_vmas+0x388/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490] mmput+0x3c/0xf8 [ed755da0] [c0021a38]
>> >>exit_mm+0x128/0x13c [ed755dd0] [c0023224] do_exit+0x19c/0x5d8
>> >>[ed755e10] [c00236e0] do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:2d970000 pmd:2ea24000
>> >>addr:48417000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:3e6
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c40] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c80]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755cb0] [c007a348]
>> >>unmap_vmas+0x388/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490] mmput+0x3c/0xf8 [ed755da0] [c0021a38]
>> >>exit_mm+0x128/0x13c [ed755dd0] [c0023224] do_exit+0x19c/0x5d8
>> >>[ed755e10] [c00236e0] do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:c4fa9351 pmd:2ea24000
>> >>addr:48418000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:3e7
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c30] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c70]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755ca0] [c0077bc8]
>> >>vm_normal_page+0x58/0x84 [ed755cb0] [c007a16c]
>> >>unmap_vmas+0x1ac/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490]
>> >>mmput+0x3c/0xf8 [ed755da0] [c0021a38] exit_mm+0x128/0x13c [ed755dd0]
>> >>[c0023224] do_exit+0x19c/0x5d8 [ed755e10] [c00236e0]
>> >>do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:95300b00 pmd:2ea24000
>> >>addr:48419000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:3e8
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c40] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c80]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755cb0] [c007a348]
>> >>unmap_vmas+0x388/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490] mmput+0x3c/0xf8 [ed755da0] [c0021a38]
>> >>exit_mm+0x128/0x13c [ed755dd0] [c0023224] do_exit+0x19c/0x5d8
>> >>[ed755e10] [c00236e0] do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:00002d72 pmd:2ea24000
>> >>addr:4841c000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:3eb
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c40] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c80]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755cb0] [c007a348]
>> >>unmap_vmas+0x388/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490] mmput+0x3c/0xf8 [ed755da0] [c0021a38]
>> >>exit_mm+0x128/0x13c [ed755dd0] [c0023224] do_exit+0x19c/0x5d8
>> >>[ed755e10] [c00236e0] do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:974e0000 pmd:2ea24000
>> >>addr:4841d000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:3ec
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c40] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c80]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755cb0] [c007a348]
>> >>unmap_vmas+0x388/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490] mmput+0x3c/0xf8 [ed755da0] [c0021a38]
>> >>exit_mm+0x128/0x13c [ed755dd0] [c0023224] do_exit+0x19c/0x5d8
>> >>[ed755e10] [c00236e0] do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:0000ffff pmd:2ea24000
>> >>addr:48608000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:5d7
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c30] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c70]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755ca0] [c0077bc8]
>> >>vm_normal_page+0x58/0x84 [ed755cb0] [c007a16c]
>> >>unmap_vmas+0x1ac/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490]
>> >>mmput+0x3c/0xf8 [ed755da0] [c0021a38] exit_mm+0x128/0x13c [ed755dd0]
>> >>[c0023224] do_exit+0x19c/0x5d8 [ed755e10] [c00236e0]
>> >>do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:ffffffff pmd:2ea24000
>> >>addr:48609000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:5d8
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c30] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c70]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755ca0] [c0077bc8]
>> >>vm_normal_page+0x58/0x84 [ed755cb0] [c007a16c]
>> >>unmap_vmas+0x1ac/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490]
>> >>mmput+0x3c/0xf8 [ed755da0] [c0021a38] exit_mm+0x128/0x13c [ed755dd0]
>> >>[c0023224] do_exit+0x19c/0x5d8 [ed755e10] [c00236e0]
>> >>do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:0030a700 pmd:2ea24000
>> >>addr:4860a000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:5d9
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c40] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c80]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755cb0] [c007a348]
>> >>unmap_vmas+0x388/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490] mmput+0x3c/0xf8 [ed755da0] [c0021a38]
>> >>exit_mm+0x128/0x13c [ed755dd0] [c0023224] do_exit+0x19c/0x5d8
>> >>[ed755e10] [c00236e0] do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:43b20800 pmd:2ea24000
>> >>addr:4860b000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:5da
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c40] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c80]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755cb0] [c007a348]
>> >>unmap_vmas+0x388/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490] mmput+0x3c/0xf8 [ed755da0] [c0021a38]
>> >>exit_mm+0x128/0x13c [ed755dd0] [c0023224] do_exit+0x19c/0x5d8
>> >>[ed755e10] [c00236e0] do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>BUG: Bad page map in process postgres  pte:45000042 pmd:2ea24000
>> >>addr:4860c000 vm_flags:080000fb anon_vma:  (null) mapping:edb4f984
>> >>index:5db
>> >>vma->vm_ops->fault: shm_fault+0x0/0x34
>> >>vma->vm_file->f_op->mmap: shm_mmap+0x0/0x7c
>> >>Call Trace:
>> >>[ed755c40] [c0007ca0] show_stack+0x58/0x154 (unreliable) [ed755c80]
>> >>[c0077b54] print_bad_pte+0x178/0x194 [ed755cb0] [c007a348]
>> >>unmap_vmas+0x388/0x490 [ed755d20] [c007c690] exit_mmap+0x98/0x148
>> >>[ed755d80] [c001d490] mmput+0x3c/0xf8 [ed755da0] [c0021a38]
>> >>exit_mm+0x128/0x13c [ed755dd0] [c0023224] do_exit+0x19c/0x5d8
>> >>[ed755e10] [c00236e0] do_group_exit+0x80/0xac [ed755e30] [c002fbb0]
>> >>get_signal_to_deliver+0x354/0x378 [ed755e80] [c0008f5c]
>> >>do_signal+0x4c/0x278 [ed755f40] [c000f154] do_user_signal+0x74/0xc4
>> >>--- Exception: 400 at 0xfa1c920
>> >>    LR = 0xfa1e8e4
>> >>------------[ cut here ]------------ kernel BUG at mm/filemap.c:138!
>> >>Oops: Exception in kernel mode, sig: 5 [#1] PREEMPT SEL35xx Platform
>> >>Modules linked in:
>> >>NIP: c0062c9c LR: c0062bf4 CTR: 00000000
>> >>REGS: edb2bb50 TRAP: 0700   Tainted: G    B        (3.0.36-rt58)
>> >>MSR: 00029032 <EE,ME,CE,IR,DR>  CR: 20004424  XER: 20000000 TASK =
>> >>ed1a7240[457] 'postgres' THREAD: edb2a000
>> >>GPR00: 00000001 edb2bc00 ed1a7240 c0d93260 c018e704 00000000
>> >>003d7000
>> >>00000000
>> >>GPR08: 00000017 00000978 00000978 c0572090 000003d7 10420ec0
>> >>103c1288
>> >>103c1724
>> >>GPR16: 103c2430 103c2450 edb4f8b4 103c2400 10419034 103c2468
>> >>ffffffff
>> >>00000000
>> >>GPR24: edb2bc58 edb4f984 00000000 00000000 000003d7 c0d93260
>> >>00000000
>> >>edb4f984
>> >>NIP [c0062c9c] __delete_from_page_cache+0xdc/0x1a4
>> >>LR [c0062bf4] __delete_from_page_cache+0x34/0x1a4
>> >>Call Trace:
>> >>[edb2bc00] [c0062bf4] __delete_from_page_cache+0x34/0x1a4
>> >>(unreliable) [edb2bc20] [c0062da8] delete_from_page_cache+0x44/0x7c
>> >>[edb2bc40] [c006c690] truncate_inode_page+0xbc/0xd4 [edb2bc50]
>> >>[c006c780] truncate_inode_pages_range+0xd8/0x2fc
>> >>[edb2bcc0] [c0071dcc] shmem_truncate_range+0x44/0x6cc [edb2bd60]
>> >>[c0072868] shmem_evict_inode+0xdc/0x174 [edb2bd80] [c00a315c]
>> >>evict+0x9c/0x160 [edb2bda0] [c009ed54] d_kill+0xfc/0x124 [edb2bdc0]
>> >>[c009ef18] dput+0x19c/0x1bc [edb2bde0] [c008d3bc] fput+0x1f4/0x210
>> >>[edb2be00] [c016da6c] shm_destroy+0x58/0x7c [edb2be20] [c016ebec]
>> >>sys_shmctl+0x718/0x824 [edb2bf10] [c016f07c] sys_ipc+0x218/0x254
>> >>[edb2bf40] [c000e934] ret_from_syscall+0x0/0x38
>> >>--- Exception: c01 at 0xfa82720
>> >>    LR = 0x101c6868
>> >>Instruction dump:
>> >>7d400028 314affff 7d40012d 40a2fff4 380b0034 7d200028 3129ffff
>7d20012d
>> >>40a2fff4 801d0008 7c0000f8 54000ffe <0f000000> 801d0000 700a0010
>> >>418200a8
>> >>
>> >>
>> >>This seems to be identical to a problem discussed in this thread
>> >>from
>> >>2007
>> >>
>> >>http://marc.info/?l=e1000-devel&m=118310336228016 but there was no
>> >>solution offered.
>> >>
>> >>Any insight you can offer would be greatly appreciated because we're
>> >>stumped.
>> >>
>> >>Thanks.
>> >>
>> >>Bruce
>> >>
>> >>
>> >>"Dave, Tushar N" <[email protected]> wrote on 05/15/2013
>06:15:30
>> >>PM:
>> >>
>> >>> From: "Dave, Tushar N" <[email protected]>
>> >>> To: "[email protected]" <[email protected]>, "e1000-
>> >>> [email protected]" <[email protected]>
>> >>> Date: 05/15/2013 06:16 PM
>> >>> Subject: RE: [E1000-devel] IGB device support question
>> >>>
>> >>> >-----Original Message-----
>> >>> >From: [email protected] [mailto:[email protected]]
>> >>> >Sent: Wednesday, May 15, 2013 3:30 PM
>> >>> >To: [email protected]
>> >>> >Subject: [E1000-devel] IGB device support question
>> >>> >
>> >>> >Hi,
>> >>> >
>> >>> >I'm currently running the 3.0.36 kernel on custom HW using an
>> >>> >MPC8347
>> >>PPC
>> >>> >SOC with an Intel RC82540EP gigabit ethernet controller that
>> >>> >we're
>> >>talking
>> >>> >to with the e1000 driver.  We're seeing a lot of problems with
>> >>> >memory
>> >>(bad
>> >>> >page table entries, out-of-memory panics, etc.) when we take the
>> >>interface
>> >>> >down and back up with ifconfig.
>> >>> >
>> >>> >I'm suspicious that our problem is due to using an old driver
>> >>> >that has memory issues.  We're not in a position to move forward
>> >>> >on kernel
>> >>versions
>> >>> >right now, so I have a couple of questions I hope you can answer.
>> >>> >
>> >>> >1) Does the IGB driver support the RC82540EP?  I'm not finding
>> >>> >any
>> >>obvious
>> >>> >references to the part in .../drivers/net/ethernet/intel/igb in
>> >>> >the
>> >>> >3.9 tree.
>> >>> No 82540 is supported by e1000 driver.
>> >>> >2) If it does, how bad would it be to try and backport to the
>3.0.36
>> >>> >kernel?
>> >>> There isn't much development into e1000 driver (only few bug
>> >>> fixes) between 3.0.36 and current stable kernel release. So I am
>> >>> not sure
>if
>> >>> backporting is going to solve the issues. 82540 is old part and in
>> >>> recent years I haven't seen anything like you describing i.e. bad
>> >>> page table entries, out-of-memory panics, etc.
>> >>> Please send the panic message and I will look into it. I am
>> >>> guessing this is system/board specific, right? Or you have similar
>> >>> issues on more than one type of system(s)?
>> >>>
>> >>> -Tushar
>> >>>
>>


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