From: Jan 'yanek' Bortl <yanek@xxxxxxxxxx> Date: Thu, 1 May 2008 16:52:39 +0200 CC:'ing netdev@xxxxxxxxxxxxxxx, where such reports belong. > I have found this problem with today's git (2.6.25-00000-ge4c576b) and 2.6.25: > > Network configuration: > > +--------+ vlan20 +---------+ vlan80 > | laptop |----------------| router |----- > +--------+ +---------+ > laptop has address 192.168.243.10 > > Reproduce HOWTO: > > 1. run http://ya.bofh.cz/archive/kernel-2.6-htbcrash/init.sh > 2. start packet generator on laptop (any traffic targetted to router's vlan80) > 3. run http://ya.bofh.cz/archive/kernel-2.6-htbcrash/crash.sh > > Then machine lockup and afterwhile print these messages: > > [ 395.137697] BUG: soft lockup - CPU#0 stuck for 61s! [ksoftirqd/0:4] > ... > [ 395.139871] Call Trace: > [ 395.139940] <IRQ> [<ffffffff8035ea7c>] ? rb_insert_color+0xbc/0xf0 > [ 395.140012] [<ffffffffa01f9cf6>] ? :sch_htb:htb_add_to_wait_tree+0xa6/0xc0 > [ 395.140061] [<ffffffffa01fb46f>] ? :sch_htb:htb_dequeue+0x47f/0x7f0 > [ 395.140111] [<ffffffffa01f9ec2>] ? :sch_htb:htb_activate_prios+0x122/0x140 > [ 395.140160] [<ffffffff804682f6>] ? __qdisc_run+0x216/0x240 > [ 395.140207] [<ffffffff804584e3>] ? dev_queue_xmit+0x2c3/0x390 > [ 395.140253] [<ffffffff8047db07>] ? ip_finish_output+0x117/0x2a0 > [ 395.140300] [<ffffffff8047dfe0>] ? ip_output+0x70/0xb0 > [ 395.140344] [<ffffffff8047ac68>] ? ip_forward_finish+0x38/0x50 > > and > > [ 527.210416] BUG: soft lockup - CPU#1 stuck for 61s! [tc:2848] > ... > [ 527.212644] Call Trace: > [ 527.212715] [<ffffffff803617ff>] ? __delay+0xf/0x30 > [ 527.212759] [<ffffffff80365a4c>] ? _raw_spin_lock+0x10c/0x180 > [ 527.212805] [<ffffffff804d90a6>] ? _spin_lock_bh+0x56/0x70 > [ 527.212849] [<ffffffff80467a3f>] ? qdisc_lock_tree+0x1f/0x30 > [ 527.212895] [<ffffffffa0228bb4>] ? :sch_sfq:sfq_init+0xf4/0x240 > [ 527.212942] [<ffffffff804693e4>] ? qdisc_create+0x154/0x250 > [ 527.212987] [<ffffffff804710d3>] ? nla_parse+0x33/0xf0 > [ 527.213031] [<ffffffff80469fd0>] ? tc_modify_qdisc+0x90/0x420 > [ 527.213079] [<ffffffff804603d9>] ? rtnetlink_rcv_msg+0x1e9/0x230 > [ 527.213125] [<ffffffff804601f0>] ? rtnetlink_rcv_msg+0x0/0x230 > > (full output here: http://ya.bofh.cz/archive/kernel-2.6-htbcrash/netconsole.txt) > > kernel's config here: http://ya.bofh.cz/archive/kernel-2.6-htbcrash/config.txt > dmesg after boot here: http://ya.bofh.cz/archive/kernel-2.6-htbcrash/dmesg.txt > > > -- > Jan 'yanek' Bortl <yanek [at] ya.bofh. cz> > http://ya.bofh.cz/ | jab: yanek [at] mitranet. cz > ----------------------------------------------------------------- > "Maybe one day you will learn that your way is not the only way." > Opher [StarGate: The Nox] > -- > To unsubscribe from this list: send the line "unsubscribe linux-net" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
