(In reply to comment #0)
> Created attachment 544354 [details]
> dmesg
> 
> Description of problem:
> 
> 
> Version-Release number of selected component (if applicable):
> 
> 
> How reproducible:It always reproducible
> 
> 
> Steps to Reproduce:
> 1.install kernel 2.6.32-220.el6.x86_64 
> 2.if i type echo "c" > /proc/sysrq-trigger it crashes
> 3.But it wont take dump and error msgs are produced as shown in additional info
> 
> Actual results:it wont save dump and kernel panic - not syncing: Out of memory
> and no killable processes...
> 
> 
> Expected results:dump is saved in /var/crash
> 
> 
> Additional info:
> BUG: unable to handle kernel NULL pointer dereference at (null)
> IP: [<ffffffff81325476>] sysrq_handle_crash+0x16/0x20
> PGD 22b003067 PUD 22bb71067 PMD 0 
> Oops: 0002 [#1] SMP 
> last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map
> CPU 1 
> Modules linked in: ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat
> xt_CHECKSUM iptable_mangle bridge stp llc autofs4 sunrpc cpufreq_ondemand
> powernow_k8 freq_table mperf ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4
> iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state
> nf_conntrack ip6table_filter ip6_tables ipv6 vhost_net macvtap macvlan tun
> kvm_amd kvm uinput bnx2 sg ses enclosure microcode dcdbas serio_raw e1000e
> k10temp amd64_edac_mod edac_core edac_mce_amd shpchp i2c_nforce2 ext4 mbcache
> jbd2 sr_mod cdrom usb_storage sd_mod crc_t10dif qla2xxx scsi_transport_fc
> scsi_tgt pata_acpi ata_generic sata_nv megaraid_sas radeon ttm drm_kms_helper
> drm i2c_algo_bit i2c_core dm_mirror dm_region_hash dm_log dm_mod [last
> unloaded: scsi_wait_scan]
> 
> Pid: 2621, comm: bash Not tainted 2.6.32-220.el6.x86_64 #1 Dell Inc. PowerEdge
> R805/0F705T
> RIP: 0010:[<ffffffff81325476>]  [<ffffffff81325476>]
> sysrq_handle_crash+0x16/0x20
> RSP: 0018:ffff88012c593e18  EFLAGS: 00010096
> RAX: 0000000000000010 RBX: 0000000000000063 RCX: 000000000000120d
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000063
> RBP: ffff88012c593e18 R08: ffffffff81c00680 R09: 0000000000000000
> R10: 00000000ffffffff R11: 0000000000000000 R12: 0000000000000000
> R13: ffffffff81afad40 R14: 0000000000000286 R15: 0000000000000004
> FS:  00007f043d9e4700(0000) GS:ffff880133c00000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000000 CR3: 000000022c3a9000 CR4: 00000000000006e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process bash (pid: 2621, threadinfo ffff88012c592000, task ffff880129664100)
> Stack:
>  ffff88012c593e68 ffffffff81325732 ffff880129664100 ffff880200000000
> <0> 0000000d80df4018 0000000000000002 ffff88022c366800 00007f043d9f4000
> <0> 0000000000000002 fffffffffffffffb ffff88012c593e98 ffffffff813257ee
> Call Trace:
>  [<ffffffff81325732>] __handle_sysrq+0x132/0x1a0
>  [<ffffffff813257ee>] write_sysrq_trigger+0x4e/0x50
>  [<ffffffff811dae8e>] proc_reg_write+0x7e/0xc0
>  [<ffffffff811765d8>] vfs_write+0xb8/0x1a0
>  [<ffffffff81176fe1>] sys_write+0x51/0x90
>  [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
> Code: d0 88 81 63 f4 fc 81 c9 c3 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89
> e5 0f 1f 44 00 00 c7 05 5d 1e 77 00 01 00 00 00 0f ae f8 <c6> 04 25 00 00 00 00
> 01 c9 c3 55 48 89 e5 0f 1f 44 00 00 8d 47 
> RIP  [<ffffffff81325476>] sysrq_handle_crash+0x16/0x20
>  RSP <ffff88012c593e18>
> CR2: 0000000000000000
> REWRITING MCP55 CFG REG
> CFG = c1
> do_IRQ: 0.178 No irq handler for vector (irq -1)
> ..MP-BIOS bug: 8254 timer not connected to IO-APIC
> [Firmware Bug]: the BIOS has corrupted hw-PMU resources (MSR c0010000 is
> 530076)
> ERST: Can not request iomem region <0xffff88000a193e60-0xffff100014327cc0> for
> ERST.
> �Mounting proc filesystem
> Mounting sysfs filesystem
> Creating /dev
> Creating initial device nodes
> Free memory/Total memory (free %): 77900 / 113980 ( 68.3453 )
> Loading freq_table.ko module
> Loading mperf.ko module
> Loading ipt_REJECT.ko module
> Loading nf_defrag_ipv4.ko module
> Loading ip_tables.ko module
> Loading nf_conntrack.ko module
> Loading ip6_tables.ko module
> Loading ipv6.ko module
> Loading macvlan.ko module
> Loading tun.ko module
> Loading kvm.ko module
> Loading uinput.ko module
> Loading bnx2.ko module
> Loading sg.ko module
> Loading enclosure.ko module
> Loading microcode.ko module
>  microcode: failed to load file amd-ucode/microcode_amd.bin
> Loading dcdbas.ko module
> Loading serio_raw.ko module
> Loading e1000e.ko module
> Loading k10temp.k10temp 0000:00:18.3: unreliable CPU thermal sensor; monitoring
> disabled
> ko module
> k10temp 0000:00:19.3: unreliable CPU thermal sensor; monitoring disabled
> Loading edac_core.ko module
> Loading edac_mce_amd.ko module
> Loading shpchp.ko module
> Loading mbcache.ko module
> Loading jbd2.ko module
> Loading cdrom.ko module
> Loading usb-storage.ko module
> Waiting 8 seconds for driver initialization.
> Loading crc-t10dif.ko module
> Loading scsi_tgt.ko module
> Loading pata_acpi.ko module
> Loading ata_generic.ko module
> Loading sata_nv.ko module
> Loading megaraid_sas.ko module
> megasas: INIT adapter done
> Loading i2c-core.ko module
> Loading dm-mod.ko module
> Loading cpufreq_ondemand.ko module
> Loading powernow-k8.ko module
> Loading nf_conntrack_ipv4.ko module
> Loading iptable_filter.ko module
> Loading ip6t_REJECT.ko module
> Loading nf_defrag_ipv6.ko module
> Loading xt_state.ko module
> Loading ip6table_filter.ko module
> Loading macvtap.ko module
> Loading kvm-amd.ko module
> Loading ses.ko module
> Loading amd64_edac_mod.ko module
> Loading i2c-nforce2.ko module
> Loading ext4.ko module
> Loading sr_mod.ko module
> Loading sd_mod.ko module
> Loading scsi_transport_fc.ko module
> Loading drm.ko module
> Loading i2c-algo-bit.ko module
> Loading dm-log.ko module
> Loading nf_conntrack_ipv6.ko module
> Loading vhost_net.ko module
> Loading qla2xxx.ko module
> Loading ttm.ko module
> Loading drm_kms_helper.ko module
> Loading dm-region-hash.ko module
> Loading radeon.ko module
> Loading dm-mirror.ko module
> Waiting for required block device discovery
> Waiting for 4 sda-like device(s)...Found
> Creating Block Devices
> Creating block device loop0
> Creating block device loop1
> Creating block device loop2
> Creating block device loop3
> Creating block device loop4
> Creating block device loop5
> Creating block device loop6
> Creating block device loop7
> Creating block device ram0
> Creating block device ram1
> Creating block device ram10
> Creating block device ram11
> Creating block device ram12
> Creating block device ram13
> Creating block device ram14
> Creating block device ram15
> Creating block device ram2
> Creating block device ram3
> Creating block device ram4
> Creating block device ram5
> Creating block device ram6
> Creating block device ram7
> Creating block device ram8
> Creating block device ram9
> Creating block device sda
> Creating block device sdb
> Creating block device sdc
> Creating block device sr0
> Creating block device sr1
> Saving to the local filesystem /dev/sda2
> e2fsck 1.41.12 (17-May-2010)
> fsck.ext4: No medium found while trying to open /dev/sda2
> 
> The superblock could not be read or does not describe a correct ext2
> filesystem.  If the device is valid and it really contains an ext2
> filesystem (and not swap or ufs or something else), then the superblock
> is corrupt, and you might try running e2fsck with an alternate superblock:
>     e2fsck -b 8193 <device>
> 
> mount: mounting /dev/sda2 on /mnt failed: No medium found
> Attempting to enter user-space to capture vmcore
> Resetting kernel time value to BIOS time and timezone value to UTC.
> Free memory/Total memory (free %): 63584 / 113980 ( 55.7852 )
> Creating root device.
> Free memory/Total memory (free %): 63476 / 113980 ( 55.6905 )
> Checking root filesystem.
> fsck (busybox 1.15.1, 2010-11-30 08:10:31 EST)
> fsck: fsck.auto: No such file or directory
> Mounting root filesystem: mount -t ext4 /dev/sdb2 /sysroot
> grep: /proc/cmdline: No such file or directory
> Loading SELINUX policy
> Free memory/Total memory (free %): 20412 / 113980 ( 17.9084 )
> Switching to new root and running init.
>                 Welcome to Red Hat Enterprise Linux Server
> Starting udev: Out of memory: Kill process 1397 (rc.sysinit) score 1 or
> sacrifice child
> Killed process 1420, UID 0, (start_udev) total-vm:108524kB, anon-rss:516kB,
> file-rss:364kB
> Out of memory: Kill process 1397 (rc.sysinit) score 1 or sacrifice child
> Killed process 1397, UID 0, (rc.sysinit) total-vm:108524kB, anon-rss:472kB,
> file-rss:192kB
> Out of memory: Kill process 1536 (udevadm) score 1 or sacrifice child
> Killed process 1536, UID 0, (udevadm) total-vm:8448kB, anon-rss:92kB,
> file-rss:60kB
> Kernel panic - not syncing: Out of memory and no killable processes...

(In reply to comment #0)
> Created attachment 544354 [details]
> dmesg
> 
> Description of problem:
> 
> 
> Version-Release number of selected component (if applicable):
> 
> 
> How reproducible:It always reproducible
> 
> 
> Steps to Reproduce:
> 1.install kernel 2.6.32-220.el6.x86_64 
> 2.if i type echo "c" > /proc/sysrq-trigger it crashes
> 3.But it wont take dump and error msgs are produced as shown in additional info
> 
> Actual results:it wont save dump and kernel panic - not syncing: Out of memory
> and no killable processes...
> 
> 
> Expected results:dump is saved in /var/crash
> 
> 
> Additional info:
> BUG: unable to handle kernel NULL pointer dereference at (null)
> IP: [<ffffffff81325476>] sysrq_handle_crash+0x16/0x20
> PGD 22b003067 PUD 22bb71067 PMD 0 
> Oops: 0002 [#1] SMP 
> last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map
> CPU 1 
> Modules linked in: ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat
> xt_CHECKSUM iptable_mangle bridge stp llc autofs4 sunrpc cpufreq_ondemand
> powernow_k8 freq_table mperf ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4
> iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state
> nf_conntrack ip6table_filter ip6_tables ipv6 vhost_net macvtap macvlan tun
> kvm_amd kvm uinput bnx2 sg ses enclosure microcode dcdbas serio_raw e1000e
> k10temp amd64_edac_mod edac_core edac_mce_amd shpchp i2c_nforce2 ext4 mbcache
> jbd2 sr_mod cdrom usb_storage sd_mod crc_t10dif qla2xxx scsi_transport_fc
> scsi_tgt pata_acpi ata_generic sata_nv megaraid_sas radeon ttm drm_kms_helper
> drm i2c_algo_bit i2c_core dm_mirror dm_region_hash dm_log dm_mod [last
> unloaded: scsi_wait_scan]
> 
> Pid: 2621, comm: bash Not tainted 2.6.32-220.el6.x86_64 #1 Dell Inc. PowerEdge
> R805/0F705T
> RIP: 0010:[<ffffffff81325476>]  [<ffffffff81325476>]
> sysrq_handle_crash+0x16/0x20
> RSP: 0018:ffff88012c593e18  EFLAGS: 00010096
> RAX: 0000000000000010 RBX: 0000000000000063 RCX: 000000000000120d
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000063
> RBP: ffff88012c593e18 R08: ffffffff81c00680 R09: 0000000000000000
> R10: 00000000ffffffff R11: 0000000000000000 R12: 0000000000000000
> R13: ffffffff81afad40 R14: 0000000000000286 R15: 0000000000000004
> FS:  00007f043d9e4700(0000) GS:ffff880133c00000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000000 CR3: 000000022c3a9000 CR4: 00000000000006e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process bash (pid: 2621, threadinfo ffff88012c592000, task ffff880129664100)
> Stack:
>  ffff88012c593e68 ffffffff81325732 ffff880129664100 ffff880200000000
> <0> 0000000d80df4018 0000000000000002 ffff88022c366800 00007f043d9f4000
> <0> 0000000000000002 fffffffffffffffb ffff88012c593e98 ffffffff813257ee
> Call Trace:
>  [<ffffffff81325732>] __handle_sysrq+0x132/0x1a0
>  [<ffffffff813257ee>] write_sysrq_trigger+0x4e/0x50
>  [<ffffffff811dae8e>] proc_reg_write+0x7e/0xc0
>  [<ffffffff811765d8>] vfs_write+0xb8/0x1a0
>  [<ffffffff81176fe1>] sys_write+0x51/0x90
>  [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
> Code: d0 88 81 63 f4 fc 81 c9 c3 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89
> e5 0f 1f 44 00 00 c7 05 5d 1e 77 00 01 00 00 00 0f ae f8 <c6> 04 25 00 00 00 00
> 01 c9 c3 55 48 89 e5 0f 1f 44 00 00 8d 47 
> RIP  [<ffffffff81325476>] sysrq_handle_crash+0x16/0x20
>  RSP <ffff88012c593e18>
> CR2: 0000000000000000
> REWRITING MCP55 CFG REG
> CFG = c1
> do_IRQ: 0.178 No irq handler for vector (irq -1)
> ..MP-BIOS bug: 8254 timer not connected to IO-APIC
> [Firmware Bug]: the BIOS has corrupted hw-PMU resources (MSR c0010000 is
> 530076)
> ERST: Can not request iomem region <0xffff88000a193e60-0xffff100014327cc0> for
> ERST.
> �Mounting proc filesystem
> Mounting sysfs filesystem
> Creating /dev
> Creating initial device nodes
> Free memory/Total memory (free %): 77900 / 113980 ( 68.3453 )
> Loading freq_table.ko module
> Loading mperf.ko module
> Loading ipt_REJECT.ko module
> Loading nf_defrag_ipv4.ko module
> Loading ip_tables.ko module
> Loading nf_conntrack.ko module
> Loading ip6_tables.ko module
> Loading ipv6.ko module
> Loading macvlan.ko module
> Loading tun.ko module
> Loading kvm.ko module
> Loading uinput.ko module
> Loading bnx2.ko module
> Loading sg.ko module
> Loading enclosure.ko module
> Loading microcode.ko module
>  microcode: failed to load file amd-ucode/microcode_amd.bin
> Loading dcdbas.ko module
> Loading serio_raw.ko module
> Loading e1000e.ko module
> Loading k10temp.k10temp 0000:00:18.3: unreliable CPU thermal sensor; monitoring
> disabled
> ko module
> k10temp 0000:00:19.3: unreliable CPU thermal sensor; monitoring disabled
> Loading edac_core.ko module
> Loading edac_mce_amd.ko module
> Loading shpchp.ko module
> Loading mbcache.ko module
> Loading jbd2.ko module
> Loading cdrom.ko module
> Loading usb-storage.ko module
> Waiting 8 seconds for driver initialization.
> Loading crc-t10dif.ko module
> Loading scsi_tgt.ko module
> Loading pata_acpi.ko module
> Loading ata_generic.ko module
> Loading sata_nv.ko module
> Loading megaraid_sas.ko module
> megasas: INIT adapter done
> Loading i2c-core.ko module
> Loading dm-mod.ko module
> Loading cpufreq_ondemand.ko module
> Loading powernow-k8.ko module
> Loading nf_conntrack_ipv4.ko module
> Loading iptable_filter.ko module
> Loading ip6t_REJECT.ko module
> Loading nf_defrag_ipv6.ko module
> Loading xt_state.ko module
> Loading ip6table_filter.ko module
> Loading macvtap.ko module
> Loading kvm-amd.ko module
> Loading ses.ko module
> Loading amd64_edac_mod.ko module
> Loading i2c-nforce2.ko module
> Loading ext4.ko module
> Loading sr_mod.ko module
> Loading sd_mod.ko module
> Loading scsi_transport_fc.ko module
> Loading drm.ko module
> Loading i2c-algo-bit.ko module
> Loading dm-log.ko module
> Loading nf_conntrack_ipv6.ko module
> Loading vhost_net.ko module
> Loading qla2xxx.ko module
> Loading ttm.ko module
> Loading drm_kms_helper.ko module
> Loading dm-region-hash.ko module
> Loading radeon.ko module
> Loading dm-mirror.ko module
> Waiting for required block device discovery
> Waiting for 4 sda-like device(s)...Found
> Creating Block Devices
> Creating block device loop0
> Creating block device loop1
> Creating block device loop2
> Creating block device loop3
> Creating block device loop4
> Creating block device loop5
> Creating block device loop6
> Creating block device loop7
> Creating block device ram0
> Creating block device ram1
> Creating block device ram10
> Creating block device ram11
> Creating block device ram12
> Creating block device ram13
> Creating block device ram14
> Creating block device ram15
> Creating block device ram2
> Creating block device ram3
> Creating block device ram4
> Creating block device ram5
> Creating block device ram6
> Creating block device ram7
> Creating block device ram8
> Creating block device ram9
> Creating block device sda
> Creating block device sdb
> Creating block device sdc
> Creating block device sr0
> Creating block device sr1
> Saving to the local filesystem /dev/sda2
> e2fsck 1.41.12 (17-May-2010)
> fsck.ext4: No medium found while trying to open /dev/sda2
> 
> The superblock could not be read or does not describe a correct ext2
> filesystem.  If the device is valid and it really contains an ext2
> filesystem (and not swap or ufs or something else), then the superblock
> is corrupt, and you might try running e2fsck with an alternate superblock:
>     e2fsck -b 8193 <device>
> 
> mount: mounting /dev/sda2 on /mnt failed: No medium found
> Attempting to enter user-space to capture vmcore
> Resetting kernel time value to BIOS time and timezone value to UTC.
> Free memory/Total memory (free %): 63584 / 113980 ( 55.7852 )
> Creating root device.
> Free memory/Total memory (free %): 63476 / 113980 ( 55.6905 )
> Checking root filesystem.
> fsck (busybox 1.15.1, 2010-11-30 08:10:31 EST)
> fsck: fsck.auto: No such file or directory
> Mounting root filesystem: mount -t ext4 /dev/sdb2 /sysroot
> grep: /proc/cmdline: No such file or directory
> Loading SELINUX policy
> Free memory/Total memory (free %): 20412 / 113980 ( 17.9084 )
> Switching to new root and running init.
>                 Welcome to Red Hat Enterprise Linux Server
> Starting udev: Out of memory: Kill process 1397 (rc.sysinit) score 1 or
> sacrifice child
> Killed process 1420, UID 0, (start_udev) total-vm:108524kB, anon-rss:516kB,
> file-rss:364kB
> Out of memory: Kill process 1397 (rc.sysinit) score 1 or sacrifice child
> Killed process 1397, UID 0, (rc.sysinit) total-vm:108524kB, anon-rss:472kB,
> file-rss:192kB
> Out of memory: Kill process 1536 (udevadm) score 1 or sacrifice child
> Killed process 1536, UID 0, (udevadm) total-vm:8448kB, anon-rss:92kB,
> file-rss:60kB
> Kernel panic - not syncing: Out of memory and no killable processes...
Updating Description of problem and version Release number

Description of problem:In RHEL 6.2 if we crash the kernel It wont save dump and
kernel is in panic state.Error messages as shown in additional information


Version-Release number of selected component (if applicable):RHEL 6.2 


How reproducible:It always reproducible


Steps to Reproduce: 
1.if we run command  echo "c" > /proc/sysrq-trigger it crashes the kernel
2.But it wont save dump and error messages are produced as shown in additional information

Actual results:Dump is not saved in /var/crash Directory


Expected results:Dump is saved in /var/crash Directory

(In reply to comment #0)
> Created attachment 544354 [details]
> dmesg
> 
> Description of problem:
> 
> 
> Version-Release number of selected component (if applicable):
> 
> 
> How reproducible:It always reproducible
> 
> 
> Steps to Reproduce:
> 1.install kernel 2.6.32-220.el6.x86_64 
> 2.if i type echo "c" > /proc/sysrq-trigger it crashes
> 3.But it wont take dump and error msgs are produced as shown in additional info
> 
> Actual results:it wont save dump and kernel panic - not syncing: Out of memory
> and no killable processes...
> 
> 
> Expected results:dump is saved in /var/crash
> 
> 
> Additional info:
> BUG: unable to handle kernel NULL pointer dereference at (null)
> IP: [<ffffffff81325476>] sysrq_handle_crash+0x16/0x20
> PGD 22b003067 PUD 22bb71067 PMD 0 
> Oops: 0002 [#1] SMP 
> last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map
> CPU 1 
> Modules linked in: ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat
> xt_CHECKSUM iptable_mangle bridge stp llc autofs4 sunrpc cpufreq_ondemand
> powernow_k8 freq_table mperf ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4
> iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state
> nf_conntrack ip6table_filter ip6_tables ipv6 vhost_net macvtap macvlan tun
> kvm_amd kvm uinput bnx2 sg ses enclosure microcode dcdbas serio_raw e1000e
> k10temp amd64_edac_mod edac_core edac_mce_amd shpchp i2c_nforce2 ext4 mbcache
> jbd2 sr_mod cdrom usb_storage sd_mod crc_t10dif qla2xxx scsi_transport_fc
> scsi_tgt pata_acpi ata_generic sata_nv megaraid_sas radeon ttm drm_kms_helper
> drm i2c_algo_bit i2c_core dm_mirror dm_region_hash dm_log dm_mod [last
> unloaded: scsi_wait_scan]
> 
> Pid: 2621, comm: bash Not tainted 2.6.32-220.el6.x86_64 #1 Dell Inc. PowerEdge
> R805/0F705T
> RIP: 0010:[<ffffffff81325476>]  [<ffffffff81325476>]
> sysrq_handle_crash+0x16/0x20
> RSP: 0018:ffff88012c593e18  EFLAGS: 00010096
> RAX: 0000000000000010 RBX: 0000000000000063 RCX: 000000000000120d
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000063
> RBP: ffff88012c593e18 R08: ffffffff81c00680 R09: 0000000000000000
> R10: 00000000ffffffff R11: 0000000000000000 R12: 0000000000000000
> R13: ffffffff81afad40 R14: 0000000000000286 R15: 0000000000000004
> FS:  00007f043d9e4700(0000) GS:ffff880133c00000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000000 CR3: 000000022c3a9000 CR4: 00000000000006e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process bash (pid: 2621, threadinfo ffff88012c592000, task ffff880129664100)
> Stack:
>  ffff88012c593e68 ffffffff81325732 ffff880129664100 ffff880200000000
> <0> 0000000d80df4018 0000000000000002 ffff88022c366800 00007f043d9f4000
> <0> 0000000000000002 fffffffffffffffb ffff88012c593e98 ffffffff813257ee
> Call Trace:
>  [<ffffffff81325732>] __handle_sysrq+0x132/0x1a0
>  [<ffffffff813257ee>] write_sysrq_trigger+0x4e/0x50
>  [<ffffffff811dae8e>] proc_reg_write+0x7e/0xc0
>  [<ffffffff811765d8>] vfs_write+0xb8/0x1a0
>  [<ffffffff81176fe1>] sys_write+0x51/0x90
>  [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
> Code: d0 88 81 63 f4 fc 81 c9 c3 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89
> e5 0f 1f 44 00 00 c7 05 5d 1e 77 00 01 00 00 00 0f ae f8 <c6> 04 25 00 00 00 00
> 01 c9 c3 55 48 89 e5 0f 1f 44 00 00 8d 47 
> RIP  [<ffffffff81325476>] sysrq_handle_crash+0x16/0x20
>  RSP <ffff88012c593e18>
> CR2: 0000000000000000
> REWRITING MCP55 CFG REG
> CFG = c1
> do_IRQ: 0.178 No irq handler for vector (irq -1)
> ..MP-BIOS bug: 8254 timer not connected to IO-APIC
> [Firmware Bug]: the BIOS has corrupted hw-PMU resources (MSR c0010000 is
> 530076)
> ERST: Can not request iomem region <0xffff88000a193e60-0xffff100014327cc0> for
> ERST.
> �Mounting proc filesystem
> Mounting sysfs filesystem
> Creating /dev
> Creating initial device nodes
> Free memory/Total memory (free %): 77900 / 113980 ( 68.3453 )
> Loading freq_table.ko module
> Loading mperf.ko module
> Loading ipt_REJECT.ko module
> Loading nf_defrag_ipv4.ko module
> Loading ip_tables.ko module
> Loading nf_conntrack.ko module
> Loading ip6_tables.ko module
> Loading ipv6.ko module
> Loading macvlan.ko module
> Loading tun.ko module
> Loading kvm.ko module
> Loading uinput.ko module
> Loading bnx2.ko module
> Loading sg.ko module
> Loading enclosure.ko module
> Loading microcode.ko module
>  microcode: failed to load file amd-ucode/microcode_amd.bin
> Loading dcdbas.ko module
> Loading serio_raw.ko module
> Loading e1000e.ko module
> Loading k10temp.k10temp 0000:00:18.3: unreliable CPU thermal sensor; monitoring
> disabled
> ko module
> k10temp 0000:00:19.3: unreliable CPU thermal sensor; monitoring disabled
> Loading edac_core.ko module
> Loading edac_mce_amd.ko module
> Loading shpchp.ko module
> Loading mbcache.ko module
> Loading jbd2.ko module
> Loading cdrom.ko module
> Loading usb-storage.ko module
> Waiting 8 seconds for driver initialization.
> Loading crc-t10dif.ko module
> Loading scsi_tgt.ko module
> Loading pata_acpi.ko module
> Loading ata_generic.ko module
> Loading sata_nv.ko module
> Loading megaraid_sas.ko module
> megasas: INIT adapter done
> Loading i2c-core.ko module
> Loading dm-mod.ko module
> Loading cpufreq_ondemand.ko module
> Loading powernow-k8.ko module
> Loading nf_conntrack_ipv4.ko module
> Loading iptable_filter.ko module
> Loading ip6t_REJECT.ko module
> Loading nf_defrag_ipv6.ko module
> Loading xt_state.ko module
> Loading ip6table_filter.ko module
> Loading macvtap.ko module
> Loading kvm-amd.ko module
> Loading ses.ko module
> Loading amd64_edac_mod.ko module
> Loading i2c-nforce2.ko module
> Loading ext4.ko module
> Loading sr_mod.ko module
> Loading sd_mod.ko module
> Loading scsi_transport_fc.ko module
> Loading drm.ko module
> Loading i2c-algo-bit.ko module
> Loading dm-log.ko module
> Loading nf_conntrack_ipv6.ko module
> Loading vhost_net.ko module
> Loading qla2xxx.ko module
> Loading ttm.ko module
> Loading drm_kms_helper.ko module
> Loading dm-region-hash.ko module
> Loading radeon.ko module
> Loading dm-mirror.ko module
> Waiting for required block device discovery
> Waiting for 4 sda-like device(s)...Found
> Creating Block Devices
> Creating block device loop0
> Creating block device loop1
> Creating block device loop2
> Creating block device loop3
> Creating block device loop4
> Creating block device loop5
> Creating block device loop6
> Creating block device loop7
> Creating block device ram0
> Creating block device ram1
> Creating block device ram10
> Creating block device ram11
> Creating block device ram12
> Creating block device ram13
> Creating block device ram14
> Creating block device ram15
> Creating block device ram2
> Creating block device ram3
> Creating block device ram4
> Creating block device ram5
> Creating block device ram6
> Creating block device ram7
> Creating block device ram8
> Creating block device ram9
> Creating block device sda
> Creating block device sdb
> Creating block device sdc
> Creating block device sr0
> Creating block device sr1
> Saving to the local filesystem /dev/sda2
> e2fsck 1.41.12 (17-May-2010)
> fsck.ext4: No medium found while trying to open /dev/sda2
> 
> The superblock could not be read or does not describe a correct ext2
> filesystem.  If the device is valid and it really contains an ext2
> filesystem (and not swap or ufs or something else), then the superblock
> is corrupt, and you might try running e2fsck with an alternate superblock:
>     e2fsck -b 8193 <device>
> 
> mount: mounting /dev/sda2 on /mnt failed: No medium found
> Attempting to enter user-space to capture vmcore
> Resetting kernel time value to BIOS time and timezone value to UTC.
> Free memory/Total memory (free %): 63584 / 113980 ( 55.7852 )
> Creating root device.
> Free memory/Total memory (free %): 63476 / 113980 ( 55.6905 )
> Checking root filesystem.
> fsck (busybox 1.15.1, 2010-11-30 08:10:31 EST)
> fsck: fsck.auto: No such file or directory
> Mounting root filesystem: mount -t ext4 /dev/sdb2 /sysroot
> grep: /proc/cmdline: No such file or directory
> Loading SELINUX policy
> Free memory/Total memory (free %): 20412 / 113980 ( 17.9084 )
> Switching to new root and running init.
>                 Welcome to Red Hat Enterprise Linux Server
> Starting udev: Out of memory: Kill process 1397 (rc.sysinit) score 1 or
> sacrifice child
> Killed process 1420, UID 0, (start_udev) total-vm:108524kB, anon-rss:516kB,
> file-rss:364kB
> Out of memory: Kill process 1397 (rc.sysinit) score 1 or sacrifice child
> Killed process 1397, UID 0, (rc.sysinit) total-vm:108524kB, anon-rss:472kB,
> file-rss:192kB
> Out of memory: Kill process 1536 (udevadm) score 1 or sacrifice child
> Killed process 1536, UID 0, (udevadm) total-vm:8448kB, anon-rss:92kB,
> file-rss:60kB
> Kernel panic - not syncing: Out of memory and no killable processes...

This is Configuration issue.closing the Bug.