Kernel not booting after applying GrSecurity patch

[johnspaul92]

i applied the Grsecurity 3.9.4 test patch on the linux kernel 3.9 and when i tried to boot it on am335x GP evm board its not booting because it is unable to mount devtmpfs. So what should i do to solve this issue???

[timbgo]

Gosh, that's so abstract without telling us tech info, which kernel, which exact patch.
I mean real info. That which you get by simply pasting over what went on in your terminal, like things that

Code: Select all

uname -r

will tell you...

[johnspaul92]

Iam using kernel version 3.9 and grsecurity test patch 3.9.4-201305292151. This is the bootlog when i tried booting on the am335x GP evm. My earlyprintk is not working so i had to read the contents of the __log_buf using the ccs software. that is why the bootlog is in this weird format.


Booting.Linux.on.physical.CPU.0x0
.Linux.version.3.9.0-grsec-00001-g8df0b44-dirty.(johns@localhost.localdomain).(gcc.version.4.7.3.20130226.(prerelease).(crosstool-NG.linaro-1.13.1-4.7-2013.03-20130313.-.Linaro.GCC.2013.03).).#23.SMP.Thu.Jul.4.14:52:37.EDT.2013
CPU:.ARMv7.Processor.[413fc082].revision.2.(ARMv7),.cr=10c53c7d
CPU:.PIPT./.VIPT.nonaliasing.data.cache,.VIPT.aliasing.instruction.cache
Machine:.Generic.AM33XX.(Flattened.Device.Tree),.model:.TI.AM335x.EVM
cma:.CMA:.reserved.16.MiB.at.8e800000
Memory.policy:.ECC.disabled,.Data.cache.writeback
On.node.0.totalpages:.65280
......X.B.....
free_area_init_node:.node.0,.pgdat.c07edac0,.node_mem_map.c0d4e000

8.(

Normal.zone:.512.pages.used.for.memmap
.0
..
Normal.zone:.0.pages.reserved
..@.)

Normal.zone:.65280.pages,.LIFO.batch:15

.8.$.....
CPU:.All.CPU(s).started.in.SVC.mode
......(
AM335X.ES2.0.(neon.)
.....X.A.....PERCPU:.Embedded.9.pages/cpu.@c0f58000.s13632.r8192.d15040.u36864

.H.3.....pcpu-alloc:.s13632.r8192.d15040.u36864.alloc=9*4096
......(
pcpu-alloc:.[0].0

.`.J.....Built.1.zonelists.in.Zone.order,.mobility.grouping.on...Total.pages:.64768


.Kernel.command.line:.omap_debugss_en.console=ttyO0,115200n8.earlyprintk=serial.root=/dev/nfs.nfsroot=172.24.190.59:/opt/arago/amsdk-nightly,nolock.rw.mem=256M.ip=dhcp
...H.3.....PID.hash.table.entries:.1024.(order:.0,.4096.bytes)
......P.?.....Dentry.cache.hash.table.entries:.32768.(order:.5,.131072.bytes)
..P.=.....Inode-cache.hash.table.entries:.16384.(order:.4,.65536.bytes)
....8.(.....__ex_table.already.sorted,.skipping.sort
.0
Memory:.255MB.=.255MB.total
......P.>.....Memory:.228740k/228740k.available,.33404k.reserved,.0K.highmem
...(
Virtual.kernel.memory.layout:.....vector..:.0xffff0000.-.0xffff1000...(...4.kB).....fixmap..:.0xfff00000.-.0xfffe0000...(.896.kB).....vmalloc.:.0xd0800000.-.0xff000000...(.744.MB).....lowmem..:.0xc0000000.-.0xd0000000...(.256.MB).....pkmap...:.0xbfe00000.-.0xc0000000...(...2.MB).....modules.:.0xbf000000.-.0xbfe00000...(..14.MB)
.text.:.0xc0008000.-.0xc04f4be4...(5043.kB)
.init.:.0xc0700000.-.0xc0752540...(.330.kB)
.data.:.0xc0754000.-.0xc07f05c8...(.626.kB)
..bss.:.0xc07f05c8.-.0xc0d4d348...(5492.kB)

.0
Hierarchical.RCU.implementation
..H.5......RCU.restricting.CPUs.from.NR_CPUS=2.to.nr_cpu_ids=1
.....(
NR_IRQS:16.nr_irqs:16.16
.X.C.....IRQ:.Found.an.INTC.at.0xfa200000.(revision.5.0).with.128.interrupts
......@
Total.of.128.interrupts.on.1.active.controller
...@./.....OMAP.clockevent.source:.GPTIMER1.at.24000000.Hz
..X.D.....sched_clock:.32.bits.at.24MHz,.resolution.41ns,.wraps.every.178956ms
.....@.).....OMAP.clocksource:.GPTIMER2.at.24000000.Hz

.8.".....Console:.colour.dummy.device.80x30

X.H.....Lock.dependency.validator:.Copyright.(c).2006.Red.Hat,.Inc.,.Ingo.Molnar
.0
....MAX_LOCKDEP_SUBCLASSES:..8
...0
....MAX_LOCK_DEPTH:
...48
..8.!
..MAX_LOCKDEP_KEYS:
.8191

.8.!
..CLASSHASH_SIZE:
...4096

.8."
..MAX_LOCKDEP_ENTRIES:.....16384

8."
..MAX_LOCKDEP_CHAINS:......32768

8."
..CHAINHASH_SIZE:
...16384

@.-......memory.used.by.lock.dependency.info:.3695.kB
....@.-......per.task-struct.memory.footprint:.1152.bytes
....H.7.....Calibrating.delay.loop....663.55.BogoMIPS.(lpj=3317760)..g......8.$.....pid_max:.default:.32768.minimum:.501.....4......0
Security.Framework.initialized
...8.#.....Mount-cache.hash.table.entries:.512......X......8.'.....CPU:.Testing.write.buffer.coherency:.ok..L......@.*.....CPU0:.thread.-1,.cpu.0,.socket.-1,.mpidr.0......pZ......P.:.....Setting.up.static.identity.map.for.0xc04f3ef0.-.0xc04f3f60
.=.....(
Brought.up.1.CPUs
.7>.....H.7.....SMP:.Total.of.1.processors.activated.(663.55.BogoMIPS)...Y>.....8.$.....CPU:.All.CPU(s).started.in.SVC.mode
P.....H.8
fdevtmpfs:.unable.to.create.devtmpfs.-14...+.....@.0.....
omap_hwmod:.debugss:._wait_target_disable.failed..z.....@.+.....
pinctrl.core:.initialized.pinctrl.subsystem.....m+......0
regulator-dummy:.no.parameters..yt......8.".....NET:.Registered.protocol.family.16
.H.....P.>.....DMA:.preallocated.256.KiB.pool.for.atomic.coherent.allocations...YT.....H.6.....
gpiochip_add:.registered.GPIOs.0.to.31.on.device:.gpio...HY.....0
OMAP.GPIO.hardware.version.0.1...0}.....H.7.....
gpiochip_add:.registered.GPIOs.32.to.63.on.device:.gpio.Z0......H.7.....
gpiochip_add:.registered.GPIOs.64.to.95.on.device:.gpio..r......H.8.....gpiochip_add:.registered.GPIOs.96.to.127.on.device:.gpioFGr
......No.ATAGs?
..r.....H.2.....hw-breakpoint:.debug.architecture.0x4.unsupported

.0
Serial:.AMBA.PL011.UART.driver...:c.....0
bio:.create.slab.<bio-0>.at.0....w
.7.3...omap-dma-engine.omap-dma-engine:.OMAP.DMA.engine.driverSUBSYSTEM=platform.DEVICE=+platform:omap-dma-engine......*J......H.3.....of_get_named_gpio_flags:.can't.parse.gpios.property......?

vbat:.5000.mV
....H.3.....of_get_named_gpio_flags:.can't.parse.gpios.property
......(
lis3_reg:.no.parameters..er.....0
SCSI.subsystem.initialized
-......@
usbcore:.registered.new.interface.driver.usbfs
...@.,.....usbcore:.registered.new.interface.driver.hub
.....@.).....usbcore:.registered.new.device.driver.usb
.@
.:.0...omap_i2c.44e0b000.i2c:.did.not.get.pins.for.i2c.error:.-19SUBSYSTEM=platform.DEVICE=+platform:44e0b000.i2c

p./.0...omap_i2c.44e0b000.i2c:.bus.0.rev0.11.at.400.kHzSUBSYSTEM=platform.DEVICE=+platform:44e0b000.i2c.v
h.2.....tps65910.0-002d:.No.interrupt.support,.no.core.IRQSUBSYSTEM=i2c.DEVICE=+i2c:0-002d
p5
......vrtc:.1800.mV...||:.....(
vrtc:.supplied.by.vbat..PE_
......vio:.at.1500.mV._na.....(
vio:.supplied.by.vbat....,......8.%.....vdd_mpu:.912.<-->.1312.mV.at.1325.mV
.....0
vdd_mpu:.supplied.by.vbat

.8.&.....vdd_core:.912.<-->.1150.mV.at.1137.mV....?......0
vdd_core:.supplied.by.vbat


.vdd3:.5000.mV...."......(
vdig1:.at.1800.mV
.G......(
vdig1:.supplied.by.vbat
..(
vdig2:.at.1800.mV
.I......(
vdig2:.supplied.by.vbat.J.@.....(
vpll:.at.1800.mV
...B.....(
vpll:.supplied.by.vbat....c.....(
vdac:.at.1800.mV
...e.....(
vdac:.supplied.by.vbat...v......(
vaux1:.at.1800.mV

.(
vaux1:.supplied.by.vbat.3f......(
vaux2:.at.3300.mV

.(
vaux2:.supplied.by.vbat.aS......(
vaux33:.at.3300.mV......r
(
vaux33:.supplied.by.vbat
.(
vmmc:.at.3300.mV
..o......(
vmmc:.supplied.by.vbat..||
.:.0...omap_i2c.4802a000.i2c:.did.not.get.pins.for.i2c.error:.-19SUBSYSTEM=platform.DEVICE=+platform:4802a000.i2c

p./.0...omap_i2c.4802a000.i2c:.bus.1.rev0.11.at.100.kHzSUBSYSTEM=platform.DEVICE=+platform:4802a000.i2c
..8.!.....Switching.to.clocksource.gp_timer

[PaX Team]

what is this kernel tree you're compiling exactly? it doesn't seem to be pure grsec and any other patches you have may very well need to be adapted to it. also try something newer like 3.10 and perhaps post your config, if we can reproduce this in qemu then we'll be able to fix this much faster.