linux-kernel - [DO] 650188ca78: Initramfs_unpacking

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Date:   Tue, 1 Sep 2020 14:51:54 +0800
From:   kernel test robot <lkp@...el.com>
To:     Matthieu Baerts <matthieu.baerts@...sares.net>
Cc:     LKML <linux-kernel@...r.kernel.org>, mptcp@...ts.01.org,
        lkp@...ts.01.org, lkp@...el.com
Subject: [DO] 650188ca78: Initramfs_unpacking_failed

Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: 650188ca7860a4f3eece3052d8e35c373b3f5030 ("DO-NOT-MERGE: mptcp: enabled by default")
https://github.com/multipath-tcp/mptcp_net-next.git export


in testcase: boot

on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+--------------------------------+------------+------------+
|                                | 43eabca415 | 650188ca78 |
+--------------------------------+------------+------------+
| boot_successes                 | 1          | 0          |
| boot_failures                  | 1          | 8          |
| Mem-Info                       | 1          |            |
| invoked_oom-killer:gfp_mask=0x | 1          |            |
| BUG:kernel_hang_in_boot_stage  | 0          | 1          |
| Initramfs_unpacking_failed     | 0          | 7          |
+--------------------------------+------------+------------+


If you fix the issue, kindly add following tag
Reported-by: kernel test robot <lkp@...el.com>


[    1.362954] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[    1.364814] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[    1.369128] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
[    1.373482] PCI: CLS 0 bytes, default 64
[    1.375130] Trying to unpack rootfs image as initramfs...
[   35.205053] Initramfs unpacking failed: invalid magic at start of compressed archive
[   35.717185] Freeing initrd memory: 1289620K
[   35.719933] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[   35.721564] software IO TLB: mapped [mem 0xbbfd2000-0xbffd2000] (64MB)
[   35.723465] kvm: no hardware support
[   35.724402] has_svm: not amd or hygon


To reproduce:

        # build kernel
	cd linux
	cp config-5.9.0-rc1-00647-g650188ca7860a .config
	make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email



Thanks,
lkp


View attachment "config-5.9.0-rc1-00647-g650188ca7860a" of type "text/plain" (209987 bytes)

View attachment "job-script" of type "text/plain" (4598 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (15320 bytes)