[atomic-devel] Atomic Host Vagrant box crashes when inserting kernel module

[Yun-Chih Chen <b03902074 ntu edu tw>]

I use the Vagrantfile[1] in rpm-ostree to boot up a CentOS 7 Atomic Host.

The kernel panics when running "rpm-ostree install fuse-sshfs", in the stage of "Copying /etc changes: xx modified, xx removed, xx added".  It turns out that a kernel module called "raid6" get inserted and its dependent module "raid6_pq" crashes during initialization.  The panic can be reproduced by simply "modprobe raid6".  The crashed vmcore can be downloaded here: https://goo.gl/r0XgxN and some relevant system info are included as attachments.​​​​​​​​

I am not sure if this report belongs here or centos-devel; just curious about why such kernel module get inserted when running rpm-ostree.  It'd be helpful if someone point out the relevant code or if this has nothing to do with rpm-ostree.

Running "rpm-ostree pkg-add xxx" on latest release[2] of CentOS Atomic Host Vagrant box using libvirt as provider produces similar kernel panic.

[1] https://github.com/projectatomic/rpm-ostree/blob/master/Vagrantfile

[2] http://cloud.centos.org/centos/7/atomic/images/CentOS-Atomic-Host-7-Vagrant-Libvirt.box

Attachment: centos-atomic-host.info
Description: Binary data

[  394.834574] xor: measuring software checksum speed
[  394.844747]    prefetch64-sse: 14892.000 MB/sec
[  394.854747]    generic_sse: 13804.000 MB/sec
[  394.855383] xor: using function: prefetch64-sse (14892.000 MB/sec)
[Nov19 14:35] xor: measuring software checksum speed
[  +0.010173]    prefetch64-sse: 14892.000 MB/sec
[  +0.010000]    generic_sse: 13804.000 MB/sec
[  +0.000636] xor: using function: prefetch64-sse (14892.000 MB/sec)
[  394.876752] raid6: sse2x1   gen()  8871 MB/s
[  394.893748] raid6: sse2x2   gen() 11414 MB/s
[  394.910749] raid6: sse2x4   gen() 13312 MB/s
[  394.911762] invalid opcode: 0000 [#1] SMP
[  394.912506] Modules linked in: raid6_pq(+) xor vfat msdos fat ext4 mbcache jbd2 xt_conntrack
ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4
xt_addrtype iptable_filter nf_nat nf_conntrack bridge stp llc dm_thin_pool dm_persistent_data
dm_bio_prison dm_bufio ppdev snd_pcm snd_timer snd soundcore pcspkr virtio_balloon parport_pc
parport i2c_piix4 i2c_core nfsd auth_rpcgss nfs_acl lockd grace ip_tables xfs libcrc32c ata_generic
pata_acpi virtio_blk virtio_net crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel
ghash_clmulni_intel scsi_transport_iscsi aesni_intel lrw gf128mul glue_helper ablk_helper cryptd
ata_piix serio_raw virtio_pci virtio_ring virtio libata floppy sunrpc dm_mirror dm_region_hash
dm_log dm_mod
[  394.927321] CPU: 0 PID: 2720 Comm: modprobe Not tainted 3.10.0-327.36.3.el7.x86_64 #1
[  394.929125] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-1.fc24 04/01/2014
[  394.931041] task: ffff8800359fe780 ti: ffff880058b04000 task.ti: ffff880058b04000
[  394.932792] RIP: 0010:[<ffffffffa0505d5a>]  [<ffffffffa0505d5a>]
raid6_avx21_gen_syndrome+0x4a/0x160 [raid6_pq]
[  394.934948] RSP: 0018:ffff880058b07c48  EFLAGS: 00010246
[  394.936060] RAX: 0000000000000000 RBX: ffff880058b07c98 RCX: ffff8800359fe780
[  394.937433] RDX: ffff880058b07fd8 RSI: 0000000000000080 RDI: 0000000000000012
[  394.938801] RBP: ffff880058b07c78 R08: ffffffffa05188e0 R09: 0000000000000226
[  394.939889] R10: ffffffff816afb80 R11: ffff880058b0798e R12: 0000000000001000
[  394.941269] R13: ffff8800584e8000 R14: ffff8800584e9000 R15: 0000000000000012
[  394.942639] FS:  00007f4f2e864740(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000
[  394.944469] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  394.945649] CR2: 00007f5c97c3a098 CR3: 00000000589b0000 CR4: 00000000001006f0
[  394.947037] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  394.948413] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  394.949780] Stack:
[  394.950438]  0000000000000080 0000000000000d50 ffffffffa05187a0 ffff8800584e8000
[  394.952382]  0000000000000000 ffffffffa0506238 ffff880058b07d58 ffffffffa008c116
[  394.954326]  0000000000000000 000000010001746e ffffffffa0508600 ffffffffa0509600
[  394.956253] Call Trace:
[  394.956959]  [<ffffffffa008c116>] init_module+0x116/0x1000 [raid6_pq]
[  394.958229]  [<ffffffffa008c000>] ? 0xffffffffa008bfff
[  394.959312]  [<ffffffff810020e8>] do_one_initcall+0xb8/0x230
[  394.960468]  [<ffffffff810ed74e>] load_module+0x134e/0x1b50
[  394.961607]  [<ffffffff81316b50>] ? ddebug_proc_write+0xf0/0xf0
[  394.962797]  [<ffffffff810e99e3>] ? copy_module_from_fd.isra.42+0x53/0x150
[  394.964144]  [<ffffffff810ee106>] SyS_finit_module+0xa6/0xd0
[  394.965309]  [<ffffffff81646b49>] system_call_fastpath+0x16/0x1b
[  394.966518] Code: 00 00 00 00 53 48 89 d3 48 83 ec 08 48 89 75 d0 4c 8b 2c c2 4c 8b 74 32 08 e8
93 89 b1 e0 84 c0 0f 84 f1 00 00 00 e8 76 8a b1 e0 <c5> fd 6f 05 be 2b 01 00 c5 e5 ef db 4d 85 e4 0f
84 c0 00 00 00
[  394.973865] RIP  [<ffffffffa0505d5a>] raid6_avx21_gen_syndrome+0x4a/0x160 [raid6_pq]
[  394.975705]  RSP <ffff880058b07c48>
[