[so2] [Tema 1] Problema vm checker
Relu Dragan
draganrelu at gmail.com
Sun Mar 25 18:21:40 EEST 2018
Salut,
Am incarcat Tema 1 pe vm checker si am observat ca primesc eroarea
"Failed to register kretprobe."
Probabil kernelul nu a fost compilat cu suport pentru kprobes?
Mentionez ca pe checkerul local obtin punctaj maxim.
Am atasat si log-ul de pe vm checker.
Multumesc,
Relu
echo "# autogenerated, do not edit " > skels/Kbuild
echo "ccflags-y += -Wno-unused-function -Wno-unused-label
-Wno-unused-variable " >> skels/Kbuild
for i in ./assignments/1-tracer
./assignments/1-tracer/checker/_helper; do echo "obj-m += $i/" >>
skels/Kbuild; done
make -C /home/so2/vm/linux-infra/
M=/home/so2/vm/linux-infra//tools/labs/skels ARCH=x86 modules
make[1]: Entering directory '/home/so2/vm/linux-infra'
CC [M] /home/so2/vm/linux-infra//tools/labs/skels/./assignments/1-tracer/mem_table.o
CC [M] /home/so2/vm/linux-infra//tools/labs/skels/./assignments/1-tracer/process_table.o
CC [M] /home/so2/vm/linux-infra//tools/labs/skels/./assignments/1-tracer/ktracer.o
CC [M] /home/so2/vm/linux-infra//tools/labs/skels/./assignments/1-tracer/kprobes.o
LD [M] /home/so2/vm/linux-infra//tools/labs/skels/./assignments/1-tracer/tracer.o
CC [M] /home/so2/vm/linux-infra//tools/labs/skels/./assignments/1-tracer/checker/_helper/tracer_helper.o
Building modules, stage 2.
MODPOST 2 modules
CC /home/so2/vm/linux-infra//tools/labs/skels/./assignments/1-tracer/checker/_helper/tracer_helper.mod.o
LD [M] /home/so2/vm/linux-infra//tools/labs/skels/./assignments/1-tracer/checker/_helper/tracer_helper.ko
CC /home/so2/vm/linux-infra//tools/labs/skels/./assignments/1-tracer/tracer.mod.o
LD [M] /home/so2/vm/linux-infra//tools/labs/skels/./assignments/1-tracer/tracer.ko
make[1]: Leaving directory '/home/so2/vm/linux-infra'
for i in skels/assignments/1-tracer/checker/_test
skels/assignments/1-tracer/checker; do make -C $i; done
make[1]: Entering directory
'/home/so2/vm/linux-infra/tools/labs/skels/assignments/1-tracer/checker/_test'
cc -Wall -g -static -m32 -c -o tracer_test.o tracer_test.c
make[1]: Leaving directory
'/home/so2/vm/linux-infra/tools/labs/skels/assignments/1-tracer/checker/_test'
make[1]: Entering directory
'/home/so2/vm/linux-infra/tools/labs/skels/assignments/1-tracer/checker'
cc -Wall -g -m32 -static -o tracer_test _test/tracer_test.o
make[1]: Leaving directory
'/home/so2/vm/linux-infra/tools/labs/skels/assignments/1-tracer/checker'
------------------------------
*Compilarea temei și a testelor (stderr)*
------------------------------
*Execuția testelor (stdout)*
vmchecker storer: Running tests ...
test_insmod.................................................passed [ 1/100]
test_rmmod..................................................passed [ 1/100]
test_insmod_rmmod...........................................passed [ 1/100]
test_open_dev_tracer........................................failed [ 0/100]
test_dev_minor_major........................................passed [ 1/100]
test_proc_entry_exists_after_insmod.........................passed [ 2/100]
test_proc_entry_inexistent_after_rmmod......................passed [ 2/100]
test_simple_kmalloc.........................................failed [ 0/100]
test_simple_kfree...........................................failed [ 0/100]
test_simple_sched...........................................failed [ 0/100]
test_simple_up_down.........................................failed [ 0/100]
test_simple_lock_unlock.....................................failed [ 0/100]
test_medium_kmalloc.........................................failed [ 0/100]
test_medium_free............................................failed [ 0/100]
test_medium_sched...........................................failed [ 0/100]
test_medium_up_down.........................................failed [ 0/100]
test_medium_lock_unlock.....................................failed [ 0/100]
test_medium_combined........................................failed [ 0/100]
test_multiple_zero_stats....................................passed [ 5/100]
test_multiple_nonzero_stats.................................failed [ 0/100]
test_decent_alloc_free......................................failed [ 0/100]
test_mini_stress............................................failed [ 0/100]
Total: [013/100]
------------------------------
*Execuția testelor (stderr)*
------------------------------
*Mesaje kernel (netconsole)*
Linux version 4.15.0+ (so2 at vmx.cs.pub.ro) (gcc version 4.9.2 (Debian
4.9.2-10+deb8u1)) #4 SMP Sat Mar 24 22:29:47 EET 2018
x86/fpu: x87 FPU will use FXSAVE
e820: BIOS-provided physical RAM map:
BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
BIOS-e820: [mem 0x0000000000100000-0x0000000007fddfff] usable
BIOS-e820: [mem 0x0000000007fde000-0x0000000007ffffff] reserved
BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
Notice: NX (Execute Disable) protection missing in CPU!
random: fast init done
SMBIOS 2.8 present.
DMI: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.9.3-20161116_142049-atsina 04/01/2014
e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
e820: remove [mem 0x000a0000-0x000fffff] usable
e820: last_pfn = 0x7fde max_arch_pfn = 0x100000
MTRR: Disabled
x86/PAT: MTRRs disabled, skipping PAT initialization too.
x86/PAT: Configuration [0-7]: WB WT UC- UC WB WT UC- UC
found SMP MP-table at [mem 0x000f6bf0-0x000f6bff] mapped at [(ptrval)]
initial memory mapped: [mem 0x00000000-0x01ffffff]
Base memory trampoline at [(ptrval)] 9b000 size 16384
BRK [0x01db5000, 0x01db5fff] PGTABLE
ACPI: Early table checksum verification disabled
ACPI: RSDP 0x00000000000F6A10 000014 (v00 BOCHS )
ACPI: RSDT 0x0000000007FE18DC 000030 (v01 BOCHS BXPCRSDT 00000001
BXPC 00000001)
ACPI: FACP 0x0000000007FE17B8 000074 (v01 BOCHS BXPCFACP 00000001
BXPC 00000001)
ACPI: DSDT 0x0000000007FE0040 001778 (v01 BOCHS BXPCDSDT 00000001
BXPC 00000001)
ACPI: FACS 0x0000000007FE0000 000040
ACPI: APIC 0x0000000007FE182C 000078 (v01 BOCHS BXPCAPIC 00000001
BXPC 00000001)
ACPI: HPET 0x0000000007FE18A4 000038 (v01 BOCHS BXPCHPET 00000001
BXPC 00000001)
ACPI: Local APIC address 0xfee00000
0MB HIGHMEM available.
127MB LOWMEM available.
mapped low ram: 0 - 07fde000
low ram: 0 - 07fde000
tsc: Fast TSC calibration using PIT
BRK [0x01db6000, 0x01db6fff] PGTABLE
Zone ranges:
DMA [mem 0x0000000000001000-0x0000000000ffffff]
Normal [mem 0x0000000001000000-0x0000000007fddfff]
HighMem empty
Movable zone start for each node
Early memory node ranges
node 0: [mem 0x0000000000001000-0x000000000009efff]
node 0: [mem 0x0000000000100000-0x0000000007fddfff]
Initmem setup node 0 [mem 0x0000000000001000-0x0000000007fddfff]
On node 0 totalpages: 32636
DMA zone: 32 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 3998 pages, LIFO batch:0
Normal zone: 224 pages used for memmap
Normal zone: 28638 pages, LIFO batch:7
Reserved but unavailable: 98 pages
Using APIC driver default
ACPI: PM-Timer IO Port: 0x608
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ5 used by override.
ACPI: IRQ9 used by override.
ACPI: IRQ10 used by override.
ACPI: IRQ11 used by override.
Using ACPI (MADT) for SMP configuration information
smpboot: Allowing 1 CPUs, 0 hotplug CPUs
e820: [mem 0x08000000-0xfffbffff] available for PCI devices
clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff,
max_idle_ns: 7645519600211568 ns
setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:1 nr_node_ids:1
percpu: Embedded 26 pages/cpu @(ptrval) s75240 r0 d31256 u106496
pcpu-alloc: s75240 r0 d31256 u106496 alloc=26*4096
pcpu-alloc: [0] 0
Built 1 zonelists, mobility grouping on. Total pages: 32380
Kernel command line: root=/dev/vda console=hvc0 debug verbose
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Initializing CPU#0
Initializing HighMem for node 0 (00000000:00000000)
Memory: 115180K/130544K available (4499K kernel code, 258K rwdata,
1384K rodata, 452K init, 7312K bss, 15364K reserved, 0K cma-reserved,
0K highmem)
virtual kernel memory layout:
fixmap : 0xfff18000 - 0xfffff000 ( 924 kB)
cpu_entry : 0xffc00000 - 0xffd39000 (1252 kB)
pkmap : 0xff800000 - 0xffc00000 (4096 kB)
vmalloc : 0xc87de000 - 0xff7fe000 ( 880 MB)
lowmem : 0xc0000000 - 0xc7fde000 ( 127 MB)
.init : 0xc1612000 - 0xc1683000 ( 452 kB)
.data : 0xc1464ca4 - 0xc1603aa0 (1659 kB)
.text : 0xc1000000 - 0xc1464ca4 (4499 kB)
Checking if this processor honours the WP bit even in supervisor mode...Ok.
Running RCU self tests
Hierarchical RCU implementation.
RCU event tracing is enabled.
RCU lockdep checking is enabled.
RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.
RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
NR_IRQS: 2304, nr_irqs: 48, preallocated irqs: 16
CPU 0 irqstacks, hard=(ptrval) soft=(ptrval)
Console: colour VGA+ 80x25
Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
... MAX_LOCKDEP_SUBCLASSES: 8
... MAX_LOCK_DEPTH: 48
... MAX_LOCKDEP_KEYS: 8191
... CLASSHASH_SIZE: 4096
... MAX_LOCKDEP_ENTRIES: 32768
... MAX_LOCKDEP_CHAINS: 65536
... CHAINHASH_SIZE: 32768
memory used by lock dependency info: 4399 kB
per task-struct memory footprint: 1344 bytes
ACPI: Core revision 20170831
ACPI: 1 ACPI AML tables successfully acquired and loaded
APIC: Switch to symmetric I/O mode setup
Enabling APIC mode: Flat. Using 1 I/O APICs
..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
tsc: Fast TSC calibration using PIT
tsc: Detected 2659.963 MHz processor
Calibrating delay loop (skipped), value calculated using timer
frequency.. 5319.92 BogoMIPS (lpj=10639852)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
Spectre V2 mitigation: Vulnerable: Minimal generic ASM retpoline
Spectre V2 mitigation: Filling RSB on context switch
Freeing SMP alternatives memory: 20K
smpboot: CPU0: Intel QEMU Virtual CPU version 2.5+ (family: 0x6,
model: 0x6, stepping: 0x3)
Performance Events: PMU not available due to virtualization, using
software events only.
Hierarchical SRCU implementation.
smp: Bringing up secondary CPUs ...
smp: Brought up 1 node, 1 CPU
smpboot: Max logical packages: 1
smpboot: Total of 1 processors activated (5319.92 BogoMIPS)
devtmpfs: initialized
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff,
max_idle_ns: 7645041785100000 ns
futex hash table entries: 256 (order: 2, 16384 bytes)
NET: Registered protocol family 16
cpuidle: using governor ladder
ACPI: bus type PCI registered
PCI: PCI BIOS revision 2.10 entry at 0xfd435, last bus=0
PCI: Using configuration type 1 for base access
ACPI: Added _OSI(Module Device)
ACPI: Added _OSI(Processor Device)
ACPI: Added _OSI(3.0 _SCP Extensions)
ACPI: Added _OSI(Processor Aggregator Device)
ACPI: Interpreter enabled
ACPI: (supports S0 S5)
ACPI: Using IOAPIC for interrupt routing
PCI: Using host bridge windows from ACPI; if necessary, use
"pci=nocrs" and report a bug
ACPI: Enabled 3 GPEs in block 00 to 0F
ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
acpi PNP0A03:00: _OSC: OS supports [Segments]
acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
acpi PNP0A03:00: fail to add MMCONFIG information, can't access
extended PCI configuration space under this bridge.
PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
pci_bus 0000:00: root bus resource [mem 0x08000000-0xfebfffff window]
pci_bus 0000:00: root bus resource [bus 00-ff]
pci 0000:00:00.0: [8086:1237] type 00 class 0x060000
pci 0000:00:01.0: [8086:7000] type 00 class 0x060100
pci 0000:00:01.1: [8086:7010] type 00 class 0x010180
pci 0000:00:01.1: reg 0x20: [io 0xc0a0-0xc0af]
pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7]
pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6]
pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177]
pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376]
pci 0000:00:01.3: [8086:7113] type 00 class 0x068000
pci 0000:00:01.3: quirk: [io 0x0600-0x063f] claimed by PIIX4 ACPI
pci 0000:00:01.3: quirk: [io 0x0700-0x070f] claimed by PIIX4 SMB
pci 0000:00:02.0: [1234:1111] type 00 class 0x030000
pci 0000:00:02.0: reg 0x10: [mem 0xfd000000-0xfdffffff pref]
pci 0000:00:02.0: reg 0x18: [mem 0xfebd0000-0xfebd0fff]
pci 0000:00:02.0: reg 0x30: [mem 0xfebc0000-0xfebcffff pref]
pci 0000:00:03.0: [1af4:1000] type 00 class 0x020000
pci 0000:00:03.0: reg 0x10: [io 0xc080-0xc09f]
pci 0000:00:03.0: reg 0x14: [mem 0xfebd1000-0xfebd1fff]
pci 0000:00:03.0: reg 0x20: [mem 0xfe000000-0xfe003fff 64bit pref]
pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref]
pci 0000:00:04.0: [1af4:1003] type 00 class 0x078000
pci 0000:00:04.0: reg 0x10: [io 0xc000-0xc03f]
pci 0000:00:04.0: reg 0x14: [mem 0xfebd2000-0xfebd2fff]
pci 0000:00:04.0: reg 0x20: [mem 0xfe004000-0xfe007fff 64bit pref]
pci 0000:00:05.0: [1af4:1001] type 00 class 0x010000
pci 0000:00:05.0: reg 0x10: [io 0xc040-0xc07f]
pci 0000:00:05.0: reg 0x14: [mem 0xfebd3000-0xfebd3fff]
pci 0000:00:05.0: reg 0x20: [mem 0xfe008000-0xfe00bfff 64bit pref]
pci_bus 0000:00: on NUMA node 0
ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
pci 0000:00:02.0: vgaarb: setting as boot VGA device
pci 0000:00:02.0: vgaarb: VGA device added:
decodes=io+mem,owns=io+mem,locks=none
pci 0000:00:02.0: vgaarb: bridge control possible
vgaarb: loaded
PCI: Using ACPI for IRQ routing
PCI: pci_cache_line_size set to 32 bytes
e820: reserve RAM buffer [mem 0x0009fc00-0x0009ffff]
e820: reserve RAM buffer [mem 0x07fde000-0x07ffffff]
clocksource: Switched to clocksource refined-jiffies
pnp: PnP ACPI init
pnp 00:00: Plug and Play ACPI device, IDs PNP0b00 (active)
pnp 00:01: Plug and Play ACPI device, IDs PNP0303 (active)
pnp 00:02: Plug and Play ACPI device, IDs PNP0f13 (active)
pnp 00:03: [dma 2]
pnp 00:03: Plug and Play ACPI device, IDs PNP0700 (active)
pnp 00:04: Plug and Play ACPI device, IDs PNP0400 (active)
pnp 00:05: Plug and Play ACPI device, IDs PNP0501 (active)
pnp: PnP ACPI: found 6 devices
clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff,
max_idle_ns: 2085701024 ns
clocksource: Switched to clocksource acpi_pm
pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window]
pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window]
pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
pci_bus 0000:00: resource 7 [mem 0x08000000-0xfebfffff window]
NET: Registered protocol family 2
TCP established hash table entries: 1024 (order: 0, 4096 bytes)
TCP bind hash table entries: 1024 (order: 3, 36864 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
UDP hash table entries: 256 (order: 2, 20480 bytes)
UDP-Lite hash table entries: 256 (order: 2, 20480 bytes)
NET: Registered protocol family 1
pci 0000:00:00.0: Limiting direct PCI/PCI transfers
pci 0000:00:01.0: PIIX3: Enabling Passive Release
pci 0000:00:01.0: Activating ISA DMA hang workarounds
pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
PCI: CLS 0 bytes, default 32
Initialise system trusted keyrings
workingset: timestamp_bits=30 max_order=15 bucket_order=0
Key type asymmetric registered
Asymmetric key parser 'x509' registered
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
io scheduler mq-deadline registered
io scheduler kyber registered
input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
ACPI: Power Button [PWRF]
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11
tsc: Refined TSC clocksource calibration: 2659.983 MHz
clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x265793d9a25,
max_idle_ns: 440795207785 ns
clocksource: Switched to clocksource tsc
ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10
ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 10
console [hvc0] enabled
i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
NET: Registered protocol family 10
Segment Routing with IPv6
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
Using IPI Shortcut mode
sched_clock: Marking stable (11623120300, 0)->(11697727050, -74606750)
Loading compiled-in X.509 certificates
input: ImExPS/2 Generic Explorer Mouse as
/devices/platform/i8042/serio1/input/input2
input: AT Translated Set 2 keyboard as
/devices/platform/i8042/serio0/input/input3
EXT4-fs (vda): couldn't mount as ext3 due to feature incompatibilities
EXT4-fs (vda): couldn't mount as ext2 due to feature incompatibilities
EXT4-fs (vda): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) readonly on device 254:0.
Freeing unused kernel memory: 452K
Write protecting the kernel text: 4500k
Write protecting the kernel read-only data: 1400k
udevd[76]: starting version 3.2.1
udevd[77]: starting eudev-3.2.1
EXT4-fs (vda): re-mounted. Opts: data=ordered
netpoll: netconsole: local port 6666
netpoll: netconsole: local IPv4 address 172.213.0.7
netpoll: netconsole: interface 'eth0'
netpoll: netconsole: remote port 6666
netpoll: netconsole: remote IPv4 address 172.213.0.1
netpoll: netconsole: remote ethernet address 46:f6:04:29:d8:72
console [netcon0] enabled
netconsole: network logging started
tracer: loading out-of-tree module taints kernel.
register_kprobe failed, returned -38
Failed to register kretprobe.
register_kprobe failed, returned -38
Failed to register kretprobe.
register_kprobe failed, returned -38
Failed to register kretprobe.
register_kprobe failed, returned -38
Failed to register kretprobe.
register_kprobe failed, returned -38
Failed to register kretprobe.
register_kprobe failed, returned -38
Failed to register kretprobe.
register_kprobe failed, returned -38
Failed to register kretprobe.
register_kprobe failed, returned -38
Failed to register kretprobe.
register_kprobe failed, returned -38
Failed to register kretprobe.
register_kprobe failed, returned -38
Failed to register kretprobe.
register_kprobe failed, returned -38
Failed to register kretprobe.
console [netcon_ext0] disabled
console [netcon0] disabled
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