I've received this kernel oops twice in the last couple of days. This
machine is not running a RAID controller. THe kernel
is 2.6.32-220.2.1.el6.x86_64. I can provide further information.
kernel: ------------[ cut here ]------------
kernel: WARNING: at kernel/sched.c:5914 thread_return+0x232/0x79d()
(Not tainted)
kernel: Hardware name: Nocona/Tumwater Customer Reference Board
kernel: Modules linked in: nfs lockd fscache nfs_acl auth_rpcgss sunrpc
ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack
iptable_filter ip_tables ppdev parport_pc parport ib_mthca ib_mad ib_core
tg3 serio_raw i2c_i801 i2c_core sg iTCO_wdt iTCO_vendor_support i6300esb
shpchp e752x_edac edac_core ext4 mbcache jbd2 sd_mod crc_t10dif pata_acpi
ata_generic ata_piix dm_mod [last unloaded: scsi_wait_scan]
kernel: Pid: 12, comm: events/1 Not tainted 2.6.32-220.2.1.el6.x86_64 #1
kernel: Call Trace:
kernel: [<ffffffff81069997>] ? warn_slowpath_common+0x87/0xc0
kernel: [<ffffffff810699ea>] ? warn_slowpath_null+0x1a/0x20
kernel: [<ffffffff814eccc5>] ? thread_return+0x232/0x79d
kernel: [<ffffffff8109676f>] ? up+0x2f/0x50
kernel: [<ffffffff81324630>] ? console_callback+0x0/0x140
kernel: [<ffffffff8108b15c>] ? worker_thread+0x1fc/0x2a0
kernel: [<ffffffff81090a10>] ? autoremove_wake_function+0x0/0x40
kernel: [<ffffffff8108af60>] ? worker_thread+0x0/0x2a0
kernel: [<ffffffff810906a6>] ? kthread+0x96/0xa0
kernel: [<ffffffff8100c14a>] ? child_rip+0xa/0x20
kernel: [<ffffffff81090610>] ? kthread+0x0/0xa0
kernel: [<ffffffff8100c140>] ? child_rip+0x0/0x20
kernel: ---[ end trace f67666d98ef041dd ]---
kernel: ------------[ cut here ]------------
kernel: WARNING: at kernel/sched.c:5914 thread_return+0x232/0x79d()
(Not tainted)
kernel: Hardware name: Nocona/Tumwater Customer Reference Board
kernel: Modules linked in: nfs lockd fscache nfs_acl auth_rpcgss sunrpc
ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack
iptable_filter ip_tables ppdev parport_pc parport ib_mthca ib_mad ib_core
tg3 serio_raw i2c_i801 i2c_core sg iTCO_wdt iTCO_vendor_support i6300esb
shpchp e752x_edac edac_core ext4 mbcache jbd2 sd_mod crc_t10dif pata_acpi
ata_generic ata_piix dm_mod [last unloaded: scsi_wait_scan]
kernel: Pid: 4, comm: ksoftirqd/0 Not tainted 2.6.32-220.2.1.el6.x86_64
#1
kernel: Call Trace:
kernel: [<ffffffff81069997>] ? warn_slowpath_common+0x87/0xc0
kernel: [<ffffffff810699ea>] ? warn_slowpath_null+0x1a/0x20
kernel: [<ffffffff814eccc5>] ? thread_return+0x232/0x79d
kernel: [<ffffffff81071b35>] ? ksoftirqd+0xd5/0x110
kernel: [<ffffffff81071a60>] ? ksoftirqd+0x0/0x110
kernel: [<ffffffff810906a6>] ? kthread+0x96/0xa0
kernel: [<ffffffff8100c14a>] ? child_rip+0xa/0x20
kernel: [<ffffffff81090610>] ? kthread+0x0/0xa0
kernel: [<ffffffff8100c140>] ? child_rip+0x0/0x20
kernel: ---[ end trace a0107e548d5b23da ]---
On Thu, Jan 12, 2012 at 8:11 AM, Akemi Yagi <[email protected]> wrote:
> On Thu, Jan 12, 2012 at 3:19 AM, Vladimir Mosgalin
> <[email protected]> wrote:
> > Hello everybody.
> >
> > After updating from kernel-2.6.32-131.21.1.el6.x86_64 to current
> > kernel-2.6.32-220.2.1.el6.x86_64 on SL6.1 system and rebooting, I got
> > following warning few minutes after system boot:
> >
> > ------------[ cut here ]------------
> > WARNING: at kernel/sched.c:5914 thread_return+0x232/0x79d() (Not tainted)
> > Hardware name: X7SB4/E
> > Modules linked in: cryptd aes_x86_64 aes_generic cbc cts ebtable_nat
> ebtables nfnetlink_queue cpufreq_stats xt_CHECKSUM nfsd exportfs w83793
> hwmon_vid coretemp ipmi_devintf ipmi_si ipmi_msghandler nfs fscache nfs_acl
> rpcsec_gss_krb5 auth_rpcgss des_generic lockd sunrpc cpufreq_ondemand
> acpi_cpufreq freq_table mperf act_police cls_u32 sch_ingress sch_sfq
> sch_hfsc ppp_synctty ppp_async crc_ccitt ppp_generic slhc sit tunnel4
> bridge stp llc nf_conntrack_netlink nfnetlink nf_conntrack_ftp ipt_LOG
> ipt_REJECT iptable_filter xt_dscp xt_NFQUEUE iptable_mangle ipt_MASQUERADE
> iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_NOTRACK iptable_raw
> ip_tables ip6t_LOG xt_limit ip6t_REJECT xt_TCPMSS nf_conntrack_ipv6
> nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter xt_length xt_CLASSIFY
> xt_mark xt_MARK xt_owner xt_multiport ip6table_mangle ip6_tables ipv6
> dm_mirror dm_region_hash dm_log vhost_net macvtap macvlan tun kvm_intel kvm
> tg3 microcode sg serio_raw i2c_i801 iTCO_wdt iTCO_vendor_support e1000e
> shpchp i3200_edac edac_core ext4 mbcache jbd2 sd_mod crc_t10dif stex ahci
> video output radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core dm_mod
> [last unloaded: scsi_wait_scan]
> > Pid: 13, comm: ksoftirqd/2 Not tainted 2.6.32-220.2.1.el6.x86_64 #1
> > Call Trace:
> > [<ffffffff81069997>] ? warn_slowpath_common+0x87/0xc0
> > [<ffffffff810699ea>] ? warn_slowpath_null+0x1a/0x20
> > [<ffffffff814eccc5>] ? thread_return+0x232/0x79d
> > [<ffffffff81071b35>] ? ksoftirqd+0xd5/0x110
> > [<ffffffff81071a60>] ? ksoftirqd+0x0/0x110
> > [<ffffffff810906a6>] ? kthread+0x96/0xa0
> > [<ffffffff8100c14a>] ? child_rip+0xa/0x20
> > [<ffffffff81090610>] ? kthread+0x0/0xa0
> > [<ffffffff8100c140>] ? child_rip+0x0/0x20
> > ---[ end trace 8029c9a8b796e39a ]---
> >
> >
> > System was working stable for a long time before without such messages
> > from kernel. It seems to work fine for now, too. What does this message
> > mean, is it something bad?
>
> It is supposed to be a harmless warning according to:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=772926
>
> But may or may not be related to some real issues reported here:
>
> http://bugs.centos.org/view.php?id=5400
>
> Akemi
>
--
Ryan C. England
Corvid Technologies <http://www.corvidtec.com/>
office: 704-799-6944 x158
cell: 980-521-2297
