On 11/22/2019 12:45 AM, djliu wrote:
Hi all,
Recently I upgrade my kernel from 2.9.0 to 2.10.0. When I remove ovs
2.9.0 kernel module, the system crash, then reboot. Does anyone know
why? My environment is centos7, linux3.10.693
The openvswitch module is not linked in when you try to remove the
package and the panic hits. It may be that
the openvswitch kernel module left something unhandled during removal.
Does openvswitch start automatically when you reboot? Try disabling the
service so that it does not start, reboot
and then try to remove the package. Note that the package is from
Centos so we have little control over what they
package and distribute.
- Greg
Below is my steps:
/ovs-dpct del-dp ovs-system/
/ip//link del genev_sys_6081/
/ip//link del vxlan_sys_4789/
/docker//stop openvswitchd/
/rmmod//vport_geneve && rmmod vport_vxlan && rmmod openvswitch/
/rpm –e openvswitch-kmod-2.9.0-1.el7.centos.x86_64 //Here, system crash./
//
The dmesg:
[6947249.802101] BUG: unable to handle kernel paging request at
ffffffffc091a280
[6947249.802477] IP: [<ffffffff81613aa0>]
inet_frag_secret_rebuild+0x50/0x120
[6947249.802772] PGD 19f5067 PUD 19f7067 PMD 1fede12067 PTE 0
[6947249.803068] Oops: 0000 [#1] SMP
[6947249.803361] Modules linked in: vxlan nf_conntrack_netlink
nfnetlink vhost_net vhost macvtap macvlan tun ebtable_filter ebtables
devlink ip6table_filter ip6_tables geneve ip6_udp_tunnel udp_tunnel
nf_conntrack_ipv6 nf_nat_ipv6 nf_defrag_ipv6 8021q garp mrp fuse btrfs
raid6_pq xor vfat msdos fat ext4 mbcache jbd2 i40evf(OE)
ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4
nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack
nf_nat nf_conntrack br_netfilter bridge stp llc dm_thin_pool
dm_persistent_data dm_bio_prison dm_bufio loop bonding dm_mirror
dm_region_hash dm_log dm_mod sb_edac edac_core coretemp intel_rapl
iosf_mbi kvm_intel kvm irqbypass crc32_pclmul ghash_clmulni_intel
aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt
iTCO_vendor_support joydev
[6947249.806297]mxm_wmi ses enclosure mei_me scsi_transport_sas mei sg
pcspkr i2c_i801 lpc_ich shpchp ipmi_si ipmi_devintf ipmi_msghandler
acpi_power_meter wmi ip_tables xfs libcrc32c sd_mod crc_t10dif
crct10dif_generic ast drm_kms_helper syscopyarea sysfillrect sysimgblt
fb_sys_fops ttm drm ahci igb libahci crct10dif_pclmul crct10dif_common
libata crc32c_intel megaraid_sas dca i40e(OE) ptp i2c_algo_bit
i2c_core pps_core [last unloaded: openvswitch]
[6947249.809054] CPU: 25 PID: 0 Comm: swapper/25 Tainted:
GWOE------------3.10.0-693.el7.x86_64 #1
[6947249.809835] Hardware name: Sugon I620-G20/60G24-US, BIOS 001
02/10/2017
[6947249.810637] task: ffff8801536ddee0 ti: ffff8801536f4000 task.ti:
ffff8801536f4000
[6947249.811467] RIP: 0010:[<ffffffff81613aa0>][<ffffffff81613aa0>]
inet_frag_secret_rebuild+0x50/0x120
[6947249.812335] RSP: 0018:ffff881fffb43de8EFLAGS: 00010286
[6947249.813210] RAX: 0000000000000000 RBX: ffffffffc091a280 RCX:
0000000000000000
[6947249.814115] RDX: 0000000000000040 RSI: 0000000000000000 RDI:
ffff881fffb43db0
[6947249.815034] RBP: ffff881fffb43e20 R08: 00000000a352f37e R09:
ffff881fffb43d70
[6947249.815965] R10: 0000000066fee719 R11: 00000000f69096ad R12:
0000000000000000
[6947249.816912] R13: ffffffffc091a280 R14: ffffffff81613a50 R15:
ffffffffc091a280
[6947249.817880] FS:0000000000000000(0000) GS:ffff881fffb40000(0000)
knlGS:0000000000000000
[6947249.818877] CS:0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[6947249.819887] CR2: ffffffffc091a280 CR3: 00000000019f2000 CR4:
00000000003427e0
[6947249.820922] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[6947249.821966] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[6947249.823014] Stack:
[6947249.824059]ffffffffc091e280 000000029e15af7c ffff880152d00000
ffffffffc091e290
[6947249.825157]0000000000000100 ffffffff81613a50 ffffffffc091a280
ffff881fffb43e58
[6947249.826275]ffffffff81097316 ffff880152d00000 000000000000007c
ffffffff81613a50
[6947249.827414] Call Trace:
[6947249.828552]<IRQ>
[6947249.828569]
[6947249.829709][<ffffffff81613a50>] ? inet_frags_init+0xa0/0xa0
[6947249.830880][<ffffffff81097316>] call_timer_fn+0x36/0x110
[6947249.832065][<ffffffff81613a50>] ? inet_frags_init+0xa0/0xa0
[6947249.833265][<ffffffff8109982d>] run_timer_softirq+0x22d/0x310
[6947249.834477][<ffffffff81090b3f>] __do_softirq+0xef/0x280
[6947249.835694][<ffffffff816b6a5c>] call_softirq+0x1c/0x30
[6947249.836916][<ffffffff8102d3c5>] do_softirq+0x65/0xa0
[6947249.838148][<ffffffff81090ec5>] irq_exit+0x105/0x110
[6947249.839388][<ffffffff816b76c2>] smp_apic_timer_interrupt+0x42/0x50
[6947249.840647][<ffffffff816b5c1d>] apic_timer_interrupt+0x6d/0x80
[6947249.841917]<EOI>
[6947249.841929]
[6947249.843199][<ffffffff816ab4a6>] ? native_safe_halt+0x6/0x10
[6947249.844497][<ffffffff816ab33e>] default_idle+0x1e/0xc0
[6947249.845785][<ffffffff81035006>] arch_cpu_idle+0x26/0x30
[6947249.847062][<ffffffff810e7bca>] cpu_startup_entry+0x14a/0x1c0
[6947249.848333][<ffffffff81051af6>] start_secondary+0x1b6/0x230
[6947249.849598] Code: 00 48 89 45 d0 48 8d 87 00 40 00 00 48 89 c7 48
89 45 c8 e8 83 7e 09 00 48 8d bb 60 40 00 00 be 04 00 00 00 e8 42 da
e0 ff 66 90 <49> 8b 55 00 48 85 d2 74 76 4c 8d 7a 98 eb 05 90 4d 8d 7e
98 4d
[6947249.852219] RIP[<ffffffff81613aa0>]
inet_frag_secret_rebuild+0x50/0x120
[6947249.853465]RSP <ffff881fffb43de8>
[6947249.854669] CR2: ffffffffc091a280
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