linux-kernel - [scsi] 9393c8de62: Initramfs_unpacking

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Date:   Fri, 8 Nov 2019 15:22:55 +0800
From:   kernel test robot <lkp@...el.com>
To:     Michael Schmitz <schmitzmic@...il.com>
Cc:     "Martin K. Petersen" <martin.petersen@...cle.com>,
        Finn Thain <fthain@...egraphics.com.au>,
        LKML <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>, lkp@...ts.01.org
Subject: [scsi] 9393c8de62: Initramfs_unpacking_failed

FYI, we noticed the following commit (built with gcc-7):

commit: 9393c8de628cf0968d81a17cc11841e42191e041 ("scsi: core: Handle drivers which set sg_tablesize to zero")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

in testcase: xfstests
with following parameters:

	disk: 4HDD
	fs: xfs
	test: xfs-group18

test-description: xfstests is a regression test suite for xfs and other files ystems.
test-url: git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git


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):


+----------------------------+------------+------------+
|                            | 8b1062d513 | 9393c8de62 |
+----------------------------+------------+------------+
| boot_successes             | 8          | 0          |
| boot_failures              | 0          | 430        |
| Initramfs_unpacking_failed | 0          | 430        |
+----------------------------+------------+------------+


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


[    1.272210] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[    1.273715] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[    1.275324] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
[    1.277815] PCI: CLS 0 bytes, default 64
[    1.278970] Trying to unpack rootfs image as initramfs...
[    4.011404] Initramfs unpacking failed: broken padding
[    4.099786] Freeing initrd memory: 346408K
[    4.103301] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[    4.104965] software IO TLB: mapped [mem 0xbbfd2000-0xbffd2000] (64MB)
[    4.106874] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x29b38900952, max_idle_ns: 440795323692 ns
[    4.119274] Initialise system trusted keyrings


To reproduce:

        # build kernel
	cd linux
	cp config-5.4.0-rc2-00003-g9393c8de628cf .config
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install
	cd <mod-install-dir>
	find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz


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



Thanks,
lkp


View attachment "config-5.4.0-rc2-00003-g9393c8de628cf" of type "text/plain" (200620 bytes)

View attachment "job-script" of type "text/plain" (5250 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (13444 bytes)