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Message #29812
[Bug 1812845] Re: 3b080b2564287be91605bfd1d5ee985696e61d3c in ubuntu_btrfs_kernel_fixes triggers system hang on i386
This bug was fixed in the package linux - 4.15.0-48.51
---------------
linux (4.15.0-48.51) bionic; urgency=medium
* linux: 4.15.0-48.51 -proposed tracker (LP: #1822820)
* Packaging resync (LP: #1786013)
- [Packaging] update helper scripts
- [Packaging] resync retpoline extraction
* 3b080b2564287be91605bfd1d5ee985696e61d3c in ubuntu_btrfs_kernel_fixes
triggers system hang on i386 (LP: #1812845)
- btrfs: raid56: properly unmap parity page in finish_parity_scrub()
* [P9][LTCTest][Opal][FW910] cpupower monitor shows multiple stop Idle_Stats
(LP: #1719545)
- cpupower : Fix header name to read idle state name
* [amdgpu] screen corruption when using touchpad (LP: #1818617)
- drm/amdgpu/gmc: steal the appropriate amount of vram for fw hand-over (v3)
- drm/amdgpu: Free VGA stolen memory as soon as possible.
* [SRU][B/C/OEM]IOMMU: add kernel dma protection (LP: #1820153)
- ACPICA: AML parser: attempt to continue loading table after error
- ACPI / property: Allow multiple property compatible _DSD entries
- PCI / ACPI: Identify untrusted PCI devices
- iommu/vt-d: Force IOMMU on for platform opt in hint
- iommu/vt-d: Do not enable ATS for untrusted devices
- thunderbolt: Export IOMMU based DMA protection support to userspace
- iommu/vt-d: Disable ATS support on untrusted devices
* Add basic support to NVLink2 passthrough (LP: #1819989)
- powerpc/powernv/npu: Do not try invalidating 32bit table when 64bit table is
enabled
- powerpc/powernv: call OPAL_QUIESCE before OPAL_SIGNAL_SYSTEM_RESET
- powerpc/powernv: Export opal_check_token symbol
- powerpc/powernv: Make possible for user to force a full ipl cec reboot
- powerpc/powernv/idoa: Remove unnecessary pcidev from pci_dn
- powerpc/powernv: Move npu struct from pnv_phb to pci_controller
- powerpc/powernv/npu: Move OPAL calls away from context manipulation
- powerpc/pseries/iommu: Use memory@ nodes in max RAM address calculation
- powerpc/pseries/npu: Enable platform support
- powerpc/pseries: Remove IOMMU API support for non-LPAR systems
- powerpc/powernv/npu: Check mmio_atsd array bounds when populating
- powerpc/powernv/npu: Fault user page into the hypervisor's pagetable
* Huawei Hi1822 NIC has poor performance (LP: #1820187)
- net-next: hinic: fix a problem in free_tx_poll()
- hinic: remove ndo_poll_controller
- net-next/hinic: add checksum offload and TSO support
- hinic: Fix l4_type parameter in hinic_task_set_tunnel_l4
- net-next/hinic:replace multiply and division operators
- net-next/hinic:add rx checksum offload for HiNIC
- net-next/hinic:fix a bug in set mac address
- net-next/hinic: fix a bug in rx data flow
- net: hinic: fix null pointer dereference on pointer hwdev
- hinic: optmize rx refill buffer mechanism
- net-next/hinic:add shutdown callback
- net-next/hinic: replace disable_irq_nosync/enable_irq
* [CONFIG] please enable highdpi font FONT_TER16x32 (LP: #1819881)
- Fonts: New Terminus large console font
- [Config]: enable highdpi Terminus 16x32 font support
* [19.04 FEAT] qeth: Enhanced link speed - kernel part (LP: #1814892)
- s390/qeth: report 25Gbit link speed
* CVE-2017-5754
- x86/nmi: Fix NMI uaccess race against CR3 switching
- x86/mm: Fix documentation of module mapping range with 4-level paging
- x86/pti: Enable global pages for shared areas
- x86/pti: Never implicitly clear _PAGE_GLOBAL for kernel image
- x86/pti: Leave kernel text global for !PCID
- x86/pti: Fix boot problems from Global-bit setting
- x86/pti: Fix boot warning from Global-bit setting
- x86/pti: Reduce amount of kernel text allowed to be Global
- x86/pti: Disallow global kernel text with RANDSTRUCT
- x86/entry/32: Add explicit 'l' instruction suffix
- x86/asm-offsets: Move TSS_sp0 and TSS_sp1 to asm-offsets.c
- x86/entry/32: Rename TSS_sysenter_sp0 to TSS_entry2task_stack
- x86/entry/32: Load task stack from x86_tss.sp1 in SYSENTER handler
- x86/entry/32: Put ESPFIX code into a macro
- x86/entry/32: Unshare NMI return path
- x86/entry/32: Split off return-to-kernel path
- x86/entry/32: Enter the kernel via trampoline stack
- x86/entry/32: Leave the kernel via trampoline stack
- x86/entry/32: Introduce SAVE_ALL_NMI and RESTORE_ALL_NMI
- x86/entry/32: Handle Entry from Kernel-Mode on Entry-Stack
- x86/entry/32: Simplify debug entry point
- x86/entry/32: Add PTI cr3 switch to non-NMI entry/exit points
- x86/entry/32: Add PTI CR3 switches to NMI handler code
- x86/entry: Rename update_sp0 to update_task_stack
- x86/pgtable: Rename pti_set_user_pgd() to pti_set_user_pgtbl()
- x86/pgtable/pae: Unshare kernel PMDs when PTI is enabled
- x86/pgtable/32: Allocate 8k page-tables when PTI is enabled
- x86/pgtable: Move pgdp kernel/user conversion functions to pgtable.h
- x86/pgtable: Move pti_set_user_pgtbl() to pgtable.h
- x86/pgtable: Move two more functions from pgtable_64.h to pgtable.h
- x86/mm/pae: Populate valid user PGD entries
- x86/mm/pae: Populate the user page-table with user pgd's
- x86/mm/pti: Add an overflow check to pti_clone_pmds()
- x86/mm/pti: Define X86_CR3_PTI_PCID_USER_BIT on x86_32
- x86/mm/pti: Clone CPU_ENTRY_AREA on PMD level on x86_32
- x86/mm/pti: Make pti_clone_kernel_text() compile on 32 bit
- x86/mm/pti: Keep permissions when cloning kernel text in
pti_clone_kernel_text()
- x86/mm/pti: Introduce pti_finalize()
- x86/mm/pti: Clone entry-text again in pti_finalize()
- x86/mm/dump_pagetables: Define INIT_PGD
- x86/pgtable/pae: Use separate kernel PMDs for user page-table
- x86/ldt: Reserve address-space range on 32 bit for the LDT
- x86/ldt: Define LDT_END_ADDR
- x86/ldt: Split out sanity check in map_ldt_struct()
- x86/ldt: Enable LDT user-mapping for PAE
- x86/pti: Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32
- [Config] Update PAGE_TABLE_ISOLATION annotations
- x86/mm/pti: Add Warning when booting on a PCID capable CPU
- x86/entry/32: Add debug code to check entry/exit CR3
- x86/pti: Check the return value of pti_user_pagetable_walk_p4d()
- x86/pti: Check the return value of pti_user_pagetable_walk_pmd()
- perf/core: Make sure the ring-buffer is mapped in all page-tables
- x86/entry/32: Check for VM86 mode in slow-path check
- x86/mm: Remove in_nmi() warning from vmalloc_fault()
- x86/kexec: Allocate 8k PGDs for PTI
- x86/mm/pti: Clear Global bit more aggressively
- mm: Allow non-direct-map arguments to free_reserved_area()
- x86/mm/init: Pass unconverted symbol addresses to free_init_pages()
- x86/mm/init: Add helper for freeing kernel image pages
- x86/mm/init: Remove freed kernel image areas from alias mapping
- x86/mm/pti: Fix 32 bit PCID check
- x86/mm/pti: Don't clear permissions in pti_clone_pmd()
- x86/mm/pti: Clone kernel-image on PTE level for 32 bit
- x86/relocs: Add __end_rodata_aligned to S_REL
- x86/mm/pti: Move user W+X check into pti_finalize()
- x86/efi: Load fixmap GDT in efi_call_phys_epilog()
- x86/efi: Load fixmap GDT in efi_call_phys_epilog() before setting %cr3
- x86/mm/doc: Clean up the x86-64 virtual memory layout descriptions
- x86/mm/doc: Enhance the x86-64 virtual memory layout descriptions
- x86/entry/32: Clear the CS high bits
- x86/mm: Move LDT remap out of KASLR region on 5-level paging
- x86/ldt: Unmap PTEs for the slot before freeing LDT pages
- x86/ldt: Remove unused variable in map_ldt_struct()
- x86/mm: Fix guard hole handling
- x86/dump_pagetables: Fix LDT remap address marker
* Avoid potential memory corruption on HiSilicon SoCs (LP: #1819546)
- iommu/arm-smmu-v3: Avoid memory corruption from Hisilicon MSI payloads
* Ubuntu18.04.01: [Power9] power8 Compat guest(RHEL7.6) crashes during guest
boot with > 256G of memory (kernel/kvm) (LP: #1818645)
- ]PATCH] KVM: PPC: Book3S HV: Don't truncate HPTE index in xlate function
* Fix for dual Intel NVMes (LP: #1821961)
- SAUCE: nvme: Merge two quirk entries into one for Intel 760p/Pro 7600p
* CVE-2017-5715
- tools headers: Synchronize prctl.h ABI header
- x86/spectre: Add missing family 6 check to microcode check
- x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
- x86/speculation: Apply IBPB more strictly to avoid cross-process data leak
- x86/speculation: Propagate information about RSB filling mitigation to sysfs
- x86/speculation: Add RETPOLINE_AMD support to the inline asm CALL_NOSPEC
variant
- x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support
- x86/retpoline: Remove minimal retpoline support
- x86/speculation: Update the TIF_SSBD comment
- x86/speculation: Clean up spectre_v2_parse_cmdline()
- x86/speculation: Remove unnecessary ret variable in cpu_show_common()
- x86/speculation: Move STIPB/IBPB string conditionals out of
cpu_show_common()
- x86/speculation: Disable STIBP when enhanced IBRS is in use
- x86/speculation: Rename SSBD update functions
- x86/speculation: Reorganize speculation control MSRs update
- sched/smt: Make sched_smt_present track topology
- x86/Kconfig: Select SCHED_SMT if SMP enabled
- sched/smt: Expose sched_smt_present static key
- x86/speculation: Rework SMT state change
- x86/l1tf: Show actual SMT state
- x86/speculation: Reorder the spec_v2 code
- x86/speculation: Mark string arrays const correctly
- x86/speculataion: Mark command line parser data __initdata
- x86/speculation: Unify conditional spectre v2 print functions
- x86/speculation: Add command line control for indirect branch speculation
- x86/speculation: Prepare for per task indirect branch speculation control
- x86/process: Consolidate and simplify switch_to_xtra() code
- x86/speculation: Avoid __switch_to_xtra() calls
- x86/speculation: Prepare for conditional IBPB in switch_mm()
- ptrace: Remove unused ptrace_may_access_sched() and MODE_IBRS
- x86/speculation: Split out TIF update
- x86/speculation: Prevent stale SPEC_CTRL msr content
- x86/speculation: Prepare arch_smt_update() for PRCTL mode
- x86/speculation: Add prctl() control for indirect branch speculation
- x86/speculation: Enable prctl mode for spectre_v2_user
- x86/speculation: Add seccomp Spectre v2 user space protection mode
- x86/speculation: Provide IBPB always command line options
- kvm: svm: Ensure an IBPB on all affected CPUs when freeing a vmcb
- x86/speculation: Change misspelled STIPB to STIBP
- x86/speculation: Add support for STIBP always-on preferred mode
- x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE
- s390: remove closung punctuation from spectre messages
- x86/speculation: Simplify the CPU bug detection logic
* CVE-2018-3639
- x86/bugs: Add AMD's variant of SSB_NO
- x86/bugs: Add AMD's SPEC_CTRL MSR usage
- x86/bugs: Switch the selection of mitigation from CPU vendor to CPU features
- x86/bugs: Update when to check for the LS_CFG SSBD mitigation
- x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR
- KVM: x86: SVM: Call x86_spec_ctrl_set_guest/host() with interrupts disabled
* [Ubuntu] vfio-ap: add subsystem to matrix device to avoid libudev failures
(LP: #1818854)
- s390: vfio_ap: link the vfio_ap devices to the vfio_ap bus subsystem
* Kernel regularly logs: Bluetooth: hci0: last event is not cmd complete
(0x0f) (LP: #1748565)
- Bluetooth: Fix unnecessary error message for HCI request completion
* HiSilicon HNS ethernet broken in 4.15.0-45 (LP: #1818294)
- net: hns: Fix WARNING when hns modules installed
* rtl8723be wifi does not work under linux-modules-extra-4.15.0-33-generic
(LP: #1788997)
- SAUCE: Revert "rtlwifi: cleanup 8723be ant_sel definition"
* Crash from :i915 module with 4.15.0-46-generic using multi-display
(LP: #1819486)
- SAUCE: Revert "drm/i915: Fix hotplug irq ack on i965/g4x"
* kernel linux-image-4.15.0-44 not booting on Hyperv Server 2008R2
(LP: #1814069)
- hv/netvsc: fix handling of fallback to single queue mode
- hv/netvsc: Fix NULL dereference at single queue mode fallback
* Lenovo ideapad 330-15ICH Wifi rfkill hard blocked (LP: #1811815)
- platform/x86: ideapad: Add ideapad 330-15ICH to no_hw_rfkill
* Qualcomm Atheros QCA9377 wireless does not work (LP: #1818204)
- platform/x86: ideapad-laptop: Add Ideapad 530S-14ARR to no_hw_rfkill list
* fscache: jobs might hang when fscache disk is full (LP: #1821395)
- fscache: fix race between enablement and dropping of object
* hns3: fix oops in hns3_clean_rx_ring() (LP: #1821064)
- net: hns3: add dma_rmb() for rx description
* Hard lockup in 2 CPUs due to deadlock in cpu_stoppers (LP: #1821259)
- stop_machine: Disable preemption after queueing stopper threads
- stop_machine: Atomically queue and wake stopper threads
* tcm_loop.ko: move from modules-extra into main modules package
(LP: #1817786)
- [Packaging] move tcm_loop.lo to main linux-modules package
* tcmu user space crash results in kernel module hang. (LP: #1819504)
- scsi: tcmu: delete unused __wait
- scsi: tcmu: track nl commands
- scsi: tcmu: simplify nl interface
- scsi: tcmu: add module wide block/reset_netlink support
* Intel XL710 - i40e driver does not work with kernel 4.15 (Ubuntu 18.04)
(LP: #1779756)
- i40e: Fix for Tx timeouts when interface is brought up if DCB is enabled
- i40e: prevent overlapping tx_timeout recover
* some codecs stop working after S3 (LP: #1820930)
- ALSA: hda - Enforces runtime_resume after S3 and S4 for each codec
* i40e xps management broken when > 64 queues/cpus (LP: #1820948)
- i40e: Do not allow use more TC queue pairs than MSI-X vectors exist
- i40e: Fix the number of queues available to be mapped for use
* 4.15 s390x kernel BUG at /build/linux-
Gycr4Z/linux-4.15.0/drivers/block/virtio_blk.c:565! (LP: #1788432)
- virtio/s390: avoid race on vcdev->config
- virtio/s390: fix race in ccw_io_helper()
* [SRU][B/B-OEM/C/D] Fix AMD IOMMU NULL dereference (LP: #1820990)
- iommu/amd: Fix NULL dereference bug in match_hid_uid
* New Intel Wireless-AC 9260 [8086:2526] card not correctly probed in Ubuntu
system (LP: #1821271)
- iwlwifi: add new card for 9260 series
* Add support for MAC address pass through on RTL8153-BD (LP: #1821276)
- r8152: Add support for MAC address pass through on RTL8153-BD
- r8152: Fix an error on RTL8153-BD MAC Address Passthrough support
-- Andrea Righi <andrea.righi@xxxxxxxxxxxxx> Tue, 02 Apr 2019 18:31:55
+0200
** Changed in: linux (Ubuntu Bionic)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5754
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-3639
--
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https://bugs.launchpad.net/bugs/1812845
Title:
3b080b2564287be91605bfd1d5ee985696e61d3c in ubuntu_btrfs_kernel_fixes
triggers system hang on i386
Status in ubuntu-kernel-tests:
In Progress
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
Fix Released
Status in linux source package in Bionic:
Fix Released
Status in linux source package in Cosmic:
Fix Released
Status in linux source package in Disco:
Fix Released
Bug description:
SRU Justification:
[Impact]
* Parity page in btrfs raid56 is incorrectly unmapped, allowing to
easily trigger a reference counter bug on i386 causing a kernel panic
* The fix unmaps the right rbio pages and adds the proper kunmap()
call for the parity page
[Test Case]
* create a raid5 btrfs filesystem:
# mkfs.btrfs -m raid5 -d raid5 /dev/sdb /dev/sdc /dev/sdd /dev/sde
* mount it:
# mount /dev/sdb /mnt
* run btrfs scrub in a loop:
# while :; do btrfs scrub start -BR /mnt; done
[Fix]
*
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3897b6f0a859288c22fb793fad11ec2327e60fcd
kunmap(p_page) was completely left out, so we never
did an unmap for the p_page and the loop unmapping the rbio page was
iterating over the wrong number of stripes: unmapping should be done
with nr_data instead of rbio->real_stripes.
[Regression Potential]
* This is an upstream fix, tested on the affected platform. The bug
is affecting only btrfs raid5/6 users on architectures where kunamp()
is not a no-op (like i386). It is also a very small patch, so backport
changes are minimal.
[Original bug report]
This issue was not spotted on AMD64
Reproduce rate: 100%
The following command is the key to trigger this:
btrfs scrub start -BR $MNT
Steps:
# (Install necessary packages)
# git clone --depth=1 git://kernel.ubuntu.com/ubuntu/autotest-client-tests
# TMP=/tmp/tmp MNT=/tmp/mnt
# mkdir -p $TMP; mkdir -p $MNT
# cd autotest-client-tests/ubuntu_btrfs_kernel_fixes
# TMP=/tmp/tmp MNT=/tmp/mnt ./3b080b2564287be91605bfd1d5ee985696e61d3c.sh
Trace:
[ 494.357824] ------------[ cut here ]------------
[ 494.357828] kernel BUG at /build/linux-bnzN1b/linux-4.15.0/mm/highmem.c:350!
[ 494.365079] invalid opcode: 0000 [#1] SMP
[ 494.369205] Modules linked in: cfg80211 intel_powerclamp ipmi_ssif gpio_ich coretemp kvm_intel kvm ipmi_si irqbypass input_leds joydev dcdbas intel_cstate ipmi_devintf sch_fq_codel shpchp i7core_edac lpc_ich ipmi_msghandler acpi_power_meter mac_hid ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear mgag200 i2c_algo_bit ttm drm_kms_helper hid_generic syscopyarea sysfillrect usbhid sysimgblt mpt3sas fb_sys_fops drm hid raid_class bnx2 scsi_transport_sas pata_acpi wmi
[ 494.430188] CPU: 2 PID: 2093 Comm: kworker/u16:1 Not tainted 4.15.0-43-generic #46-Ubuntu
[ 494.438618] Hardware name: Dell Inc. PowerEdge R310/05XKKK, BIOS 1.11.0 09/18/2012
[ 494.446494] Workqueue: btrfs-endio-raid56 btrfs_endio_raid56_helper [btrfs]
[ 494.453657] EIP: kunmap_high+0xaa/0xb0
[ 494.457571] EFLAGS: 00010246 CPU: 2
[ 494.461229] EAX: 00000115 EBX: fffff000 ECX: 00000001 EDX: 00000000
[ 494.467840] ESI: 00000004 EDI: 00000004 EBP: f4883e44 ESP: f4883e40
[ 494.474264] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 494.479931] CR0: 80050033 CR2: 005885e0 CR3: 0fe16000 CR4: 000006f0
[ 494.486353] Call Trace:
[ 494.488967] kunmap+0x3e/0x50
[ 494.492140] finish_parity_scrub+0x24d/0x570 [btrfs]
[ 494.497226] ? update_load_avg+0x64f/0x830
[ 494.501528] validate_rbio_for_parity_scrub+0xc2/0xd0 [btrfs]
[ 494.507527] raid56_parity_scrub_end_io+0x53/0x70 [btrfs]
[ 494.513058] bio_endio+0xb9/0x110
[ 494.516574] ? end_workqueue_fn+0x2c/0x40 [btrfs]
[ 494.521435] end_workqueue_fn+0x33/0x40 [btrfs]
[ 494.526139] normal_work_helper+0x7d/0x2f0 [btrfs]
[ 494.531087] btrfs_endio_raid56_helper+0x10/0x20 [btrfs]
[ 494.536621] process_one_work+0x1b9/0x3d0
[ 494.540799] worker_thread+0x37/0x420
[ 494.544628] kthread+0xf0/0x110
[ 494.547931] ? process_one_work+0x3d0/0x3d0
[ 494.552282] ? kthread_create_worker_on_cpu+0x20/0x20
[ 494.557488] ? kthread_create_worker_on_cpu+0x20/0x20
[ 494.562701] ret_from_fork+0x2e/0x38
[ 494.566441] Code: 2d ee ff 58 8b 5d fc c9 c3 90 8d b4 26 00 00 00 00 a1 80 d1 c4 cf 31 c9 3d 80 d1 c4 cf 0f 95 c1 eb bc 8d b4 26 00 00 00 00 0f 0b <0f> 0b 8d 74 26 00 66 66 66 66 90 55 89 e5 56 53 31 db e8 1f ef
[ 494.585751] EIP: kunmap_high+0xaa/0xb0 SS:ESP: 0068:f4883e40
[ 494.591688] ---[ end trace 5e6d708abb85eeba ]---
Follow up with CPU soft lockup.
Please find the attachment for the complete log.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-43-generic 4.15.0-43.46
ProcVersionSignature: User Name 4.15.0-43.46-generic 4.15.18
Uname: Linux 4.15.0-43-generic i686
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jan 22 11:54 seq
crw-rw---- 1 root audio 116, 33 Jan 22 11:54 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: i386
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Tue Jan 22 11:54:49 2019
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
MachineType: Dell Inc. PowerEdge R310
PciMultimedia:
ProcFB: 0 mgadrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-43-generic root=UUID=6aaa11f6-d386-4c0c-b4b8-38e6c408980a ro console=ttyS0,115200n8
RelatedPackageVersions:
linux-restricted-modules-4.15.0-43-generic N/A
linux-backports-modules-4.15.0-43-generic N/A
linux-firmware 1.173.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/18/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.11.0
dmi.board.name: 05XKKK
dmi.board.vendor: Dell Inc.
dmi.board.version: A05
dmi.chassis.type: 23
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.11.0:bd09/18/2012:svnDellInc.:pnPowerEdgeR310:pvr:rvnDellInc.:rn05XKKK:rvrA05:cvnDellInc.:ct23:cvr:
dmi.product.name: PowerEdge R310
dmi.sys.vendor: Dell Inc.
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