Hi,
We too are experiencing this crash when attempting to upgrade from
Pyro to Rocko.
Has anyone been able to work out the cause, or can someone look into
it? I can supply any debug information needed (just let me know).
Regards,
Mathew
> Hi,
> I am experiencing a Kernel crash when moving my system from Yocto 2.3 (Pyro)
> to Rocko or Master.
> Target system is an ARMv7 (NXP Layerscape LS1021a, built on Cortex-A7).
> This is what I did:
> 1) switched poky version
> 2) re-built same image in a new, blank directory
> Results:
> Root-FS works fine, the kernel crashes with an undefined instruction oops.
> Just exchanging the kernel zImage with the one compiled with Pyro (same
> recipe), my system works fine again.
> What I tried so far:
> 1) checked and compared the kernel configs generated: 100% identical
> 2) switched gcc back to the version used in Pyro (6.3) instead of 7.2: kernel
> still crashes, same oops, no changes. So it's not related to GCC 7.2
> 3) checked on different boards: same issue for the same board type, but the
> switch to rocko worked fine for a system based on Cortex-A9.
> I am using separate tmp directories and am not sharing sstate. I always
> started builds in blank build directories.
> The error is reproducible (100%)
> It was also present with all of the various snapshots of the master branch I
> tried
> What I suspect: there are some changes in the ways that gcc is called from
> pyro to rocko. Maybe one of the switches, or features, etc
> Before deep-diving into the trial and error phase of reproducing the CFLAGS,
> etc:
> Is anyone experiencing the same issues?
> * What exactly has changed in the way the kernel build is called (methods,
> compile/link flags, etc) between pyro and rocko? *
> * Is there a way to (easily) disable some of the features to test which one
> causes the issue? *
> * Any suspicions about what could cause this? *
> Pls. find a log of the crash below, and an excerpt of my kernel recipe and
> machine configuration.
> Thanks in advance for your help,
> Best regards,
> Michael
> -------------
> VFS: Mounted root (ext4 filesystem) on device 179:1.
> devtmpfs: mounted
> Freeing unused kernel memory: 2048K
> Internal error: Oops - undefined instruction: 0 [#1] SMP THUMB2
> Modules linked in:
> CPU: 1 PID: 1 Comm: init Not tainted 4.14.2-avnet-nxp #2
> Hardware name: Freescale LS1021A
> task: bf0a0000 task.stack: bf09a000
> PC is at ret_fast_syscall+0x2/0x52
> LR is at SyS_brk+0x109/0x128
> pc : [<80205fc2>] lr : [<802c513d>] psr: 60000013
> sp : bf09bfa8 ip : 70c5387d fp : 00001000
> r10: 00000000 r9 : bf09a000 r8 : 802061a4
> r7 : 0000002d r6 : 76f71bac r5 : 00010034 r4 : 00000009
> r3 : 000273c8 r2 : ffff0001 r1 : 00000000 r0 : 00028000
> Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
> Control: 70c5387d Table: be7d1000 DAC: fffbfff3
> Process init (pid: 1, stack limit = 0xbf09a210)
> Stack: (0xbf09bfa8 to 0xbf09c000)
> bfa0: 00000009 00010034 00000000 7ee86fea 00000000 00000001
> bfc0: 00000009 00010034 76f71bac 0000002d 00000000 00000001 00000001 00001000
> bfe0: 7ee86f14 7ee86e4c 76f87a58 76f88e88 60000010 00000000 00000000 00000000
> Code: 20012000 0000bd08 00000000 b6720000 (2008f8d9)
> ---[ end trace 7bab6dceda641aab ]---
> Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
> CPU0: stopping
> CPU: 0 PID: 0 Comm: swapper/0 Tainted: G D 4.14.2-avnet-nxp #2
> Hardware name: Freescale LS1021A
> [<8020bbe9>] (unwind_backtrace) from [<80208e77>] (show_stack+0xb/0xc)
> [<80208e77>] (show_stack) from [<8066af19>] (dump_stack+0x69/0x78)
> [<8066af19>] (dump_stack) from [<8020b1d5>] (handle_IPI+0x261/0x274)
> [<8020b1d5>] (handle_IPI) from [<802012b1>] (gic_handle_irq+0x61/0x64)
> [<802012b1>] (gic_handle_irq) from [<8067d953>] (__irq_svc+0x53/0x7c)
> Exception stack(0x80e01f38 to 0x80e01f80)
> 1f20: 00000000 000027d0
> 1f40: 3eb79000 80212641 ffffe000 80e03cd0 80e03c74 80e7f3ab 8096e480 80e03c40
> 1f60: 80e8ce00 80c42a30 01400000 80e01f88 80206a3d 80206a3e 40000033 ffffffff
> [<8067d953>] (__irq_svc) from [<80206a3e>] (arch_cpu_idle+0x22/0x24)
> [<80206a3e>] (arch_cpu_idle) from [<802405bf>] (do_idle+0x9f/0xe4)
> [<802405bf>] (do_idle) from [<802407bb>] (cpu_startup_entry+0x13/0x14)
> [<802407bb>] (cpu_startup_entry) from [<80c00a05>] (start_kernel+0x305/0x310)
> ---[ end Kernel panic - not syncing: Attempted to kill init!
> exitcode=0x0000000b
> -----------------------
> Excerpt from linux_xxx.bb:
> ----
> DEPENDS_kernel-base += "kernel-devicetree"
> LINUX_VERSION = "4.14-stable"
> S = "${WORKDIR}/git"
> PR = "r1"
> SRCREV = "8292fd8d726105abc01dae26d0a2cddcf53d4e0f"
> PV = "4.14.2"
> SRC_URI = " \
>
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git;branch=master;protocol=git;nobranch=1
> \
> "
> SRC_URI_append_ls1021a = " file://defconfig "
> SRC_URI_append_ls1021a = " file://pcie.cfg file://caam.cfg file://usb.cfg
> file://bt.cfg "
> ----
> Excerpt from machine.conf
> ---
> SOC_FAMILY = "ls1021a"
> TARGET_ARCH = "arm"
> DEFAULTTUNE = "cortexa7hf-neon-vfpv4"
> IMAGE_INSTALL_append = " kernel-modules kernel-devicetree kernel-image"
> KERNEL_IMAGETYPE = "zImage"
> KERNEL_EXTRA_ARGS += "LOADADDR=${UBOOT_ENTRYPOINT}"
> EXTRA_IMAGEDEPENDS += "virtual/bootloader"
> ----
>
--
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