On Fri, Feb 09, 2007 at 01:38:02PM -0800, Andrew Morton wrote: > > cond_resched() called from softirq, amongst other problems. > > On Fri, 9 Feb 2007 08:23:44 -0800 > [EMAIL PROTECTED] wrote: > > > http://bugzilla.kernel.org/show_bug.cgi?id=7974 > > > > Summary: BUG: scheduling while atomic: swapper/0x10000100/0 > > Kernel Version: 2.6.20 > > Status: NEW > > Severity: normal > > Owner: [EMAIL PROTECTED] > > Submitter: [EMAIL PROTECTED] > > > > > > The machine hangs in normal boot with 2.6.19 and 2.6.20 after network > > starts. If > > I boot in single mode and start the services manually, the machine and > > network > > works fine, but I see this on dmesg: > > > > > > Call Trace: > > <IRQ> [<ffffffff802607d0>] __sched_text_start+0x60/0xb27 > > [<ffffffff8802c8a1>] :tg3:tg3_setup_copper_phy+0x9d9/0xad9 > > [<ffffffff8026f8d5>] smp_local_timer_interrupt+0x34/0x5b > > [<ffffffff8802d6d4>] :tg3:tg3_setup_phy+0xd33/0xe16 > > [<ffffffff8027f572>] __cond_resched+0x1c/0x44 > > [<ffffffff802613aa>] cond_resched+0x2e/0x39 > > [<ffffffff80209f5a>] kmem_cache_alloc+0x14/0x58 > > [<ffffffff8022df6f>] __alloc_skb+0x36/0x134 > > [<ffffffff804a4ea7>] rtmsg_ifinfo+0x28/0xa1 > > [<ffffffff804a4f81>] rtnetlink_event+0x61/0x68 > > [<ffffffff8028ad24>] notifier_call_chain+0x24/0x36 > > [<ffffffff8049ccad>] dev_set_mac_address+0x53/0x66 > > [<ffffffff88019648>] :bonding:alb_set_slave_mac_addr+0x4b/0x73 > > [<ffffffff88019b0c>] :bonding:alb_swap_mac_addr+0x8b/0x15c > > [<ffffffff804a02e7>] dev_mc_add+0x137/0x148 > > [<ffffffff88014338>] :bonding:bond_change_active_slave+0x1ea/0x34d > > [<ffffffff8801481d>] :bonding:bond_select_active_slave+0xbe/0xf4 > > [<ffffffff880165e5>] :bonding:bond_mii_monitor+0x401/0x45b > > [<ffffffff880161e4>] :bonding:bond_mii_monitor+0x0/0x45b > > [<ffffffff80287ed2>] run_timer_softirq+0x142/0x1c0 > > [<ffffffff80211f6a>] __do_softirq+0x5c/0xd2 > > [<ffffffff8025ef4c>] call_softirq+0x1c/0x28 > > [<ffffffff80268e95>] do_softirq+0x2c/0x87 > > [<ffffffff8026fdd7>] smp_apic_timer_interrupt+0x57/0x6c > > [<ffffffff8025691a>] mwait_idle+0x0/0x45 > > [<ffffffff8025e9f6>] apic_timer_interrupt+0x66/0x70 > > <EOI> [<ffffffff8025695c>] mwait_idle+0x42/0x45 > > [<ffffffff802484e5>] cpu_idle+0x5b/0x7a > > [<ffffffff8065b88a>] start_secondary+0x4e0/0x4f6 > > > > RTNL: assertion failed at net/core/fib_rules.c (444) > > > > Call Trace: > > <IRQ> [<ffffffff804a8abb>] fib_rules_event+0x3b/0x120 > > [<ffffffff8028ad24>] notifier_call_chain+0x24/0x36 > > [<ffffffff8049ccad>] dev_set_mac_address+0x53/0x66 > > [<ffffffff88019648>] :bonding:alb_set_slave_mac_addr+0x4b/0x73 > > [<ffffffff88019b0c>] :bonding:alb_swap_mac_addr+0x8b/0x15c > > [<ffffffff804a02e7>] dev_mc_add+0x137/0x148 > > [<ffffffff88014338>] :bonding:bond_change_active_slave+0x1ea/0x34d > > [<ffffffff8801481d>] :bonding:bond_select_active_slave+0xbe/0xf4 > > [<ffffffff880165e5>] :bonding:bond_mii_monitor+0x401/0x45b > > [<ffffffff880161e4>] :bonding:bond_mii_monitor+0x0/0x45b > > [<ffffffff80287ed2>] run_timer_softirq+0x142/0x1c0 > > [<ffffffff80211f6a>] __do_softirq+0x5c/0xd2 > > [<ffffffff8025ef4c>] call_softirq+0x1c/0x28 > > [<ffffffff80268e95>] do_softirq+0x2c/0x87 > > [<ffffffff8026fdd7>] smp_apic_timer_interrupt+0x57/0x6c > > [<ffffffff8025691a>] mwait_idle+0x0/0x45 > > [<ffffffff8025e9f6>] apic_timer_interrupt+0x66/0x70 > > <EOI> [<ffffffff8025695c>] mwait_idle+0x42/0x45 > > [<ffffffff802484e5>] cpu_idle+0x5b/0x7a > > [<ffffffff8065b88a>] start_secondary+0x4e0/0x4f6 > > > > BUG: scheduling while atomic: swapper/0x10000100/0 > > > > Call Trace: > > <IRQ> [<ffffffff802607d0>] __sched_text_start+0x60/0xb27 > > [<ffffffff8026f8d5>] smp_local_timer_interrupt+0x34/0x5b > > [<ffffffff8027f572>] __cond_resched+0x1c/0x44 > > [<ffffffff802613aa>] cond_resched+0x2e/0x39 > > [<ffffffff80262029>] mutex_lock+0x9/0x18 > > [<ffffffff8049ea76>] netdev_run_todo+0x16/0x230 > > [<ffffffff804bcc75>] dst_rcu_free+0x0/0x3f > > [<ffffffff804d9c29>] inetdev_event+0x29/0x2d0 > > [<ffffffff80263138>] _spin_lock_bh+0x9/0x19 > > [<ffffffff8023d84a>] rt_run_flush+0x92/0xcc > > [<ffffffff8028ad24>] notifier_call_chain+0x24/0x36 > > [<ffffffff8049ccad>] dev_set_mac_address+0x53/0x66 > > [<ffffffff88019648>] :bonding:alb_set_slave_mac_addr+0x4b/0x73 > > [<ffffffff88019b0c>] :bonding:alb_swap_mac_addr+0x8b/0x15c > > [<ffffffff804a02e7>] dev_mc_add+0x137/0x148 > > [<ffffffff88014338>] :bonding:bond_change_active_slave+0x1ea/0x34d > > [<ffffffff8801481d>] :bonding:bond_select_active_slave+0xbe/0xf4 > > [<ffffffff880165e5>] :bonding:bond_mii_monitor+0x401/0x45b > > [<ffffffff880161e4>] :bonding:bond_mii_monitor+0x0/0x45b > > [<ffffffff80287ed2>] run_timer_softirq+0x142/0x1c0 > > [<ffffffff80211f6a>] __do_softirq+0x5c/0xd2 > > [<ffffffff8025ef4c>] call_softirq+0x1c/0x28 > > [<ffffffff80268e95>] do_softirq+0x2c/0x87 > > [<ffffffff8026fdd7>] smp_apic_timer_interrupt+0x57/0x6c > > [<ffffffff8025691a>] mwait_idle+0x0/0x45 > > [<ffffffff8025e9f6>] apic_timer_interrupt+0x66/0x70 > > <EOI> [<ffffffff8025695c>] mwait_idle+0x42/0x45 > > [<ffffffff802484e5>] cpu_idle+0x5b/0x7a > > [<ffffffff8065b88a>] start_secondary+0x4e0/0x4f6 > > > > RTNL: assertion failed at net/ipv4/devinet.c (1055) > > > > Call Trace: > > <IRQ> [<ffffffff804d9c48>] inetdev_event+0x48/0x2d0 > > [<ffffffff80263138>] _spin_lock_bh+0x9/0x19 > > [<ffffffff8023d84a>] rt_run_flush+0x92/0xcc > > [<ffffffff8028ad24>] notifier_call_chain+0x24/0x36 > > [<ffffffff8049ccad>] dev_set_mac_address+0x53/0x66 > > [<ffffffff88019648>] :bonding:alb_set_slave_mac_addr+0x4b/0x73 > > [<ffffffff88019b0c>] :bonding:alb_swap_mac_addr+0x8b/0x15c > > [<ffffffff804a02e7>] dev_mc_add+0x137/0x148 > > [<ffffffff88014338>] :bonding:bond_change_active_slave+0x1ea/0x34d > > [<ffffffff8801481d>] :bonding:bond_select_active_slave+0xbe/0xf4 > > [<ffffffff880165e5>] :bonding:bond_mii_monitor+0x401/0x45b > > [<ffffffff880161e4>] :bonding:bond_mii_monitor+0x0/0x45b > > [<ffffffff80287ed2>] run_timer_softirq+0x142/0x1c0 > > [<ffffffff80211f6a>] __do_softirq+0x5c/0xd2 > > [<ffffffff8025ef4c>] call_softirq+0x1c/0x28 > > [<ffffffff80268e95>] do_softirq+0x2c/0x87 > > [<ffffffff8026fdd7>] smp_apic_timer_interrupt+0x57/0x6c > > [<ffffffff8025691a>] mwait_idle+0x0/0x45 > > [<ffffffff8025e9f6>] apic_timer_interrupt+0x66/0x70 > > <EOI> [<ffffffff8025695c>] mwait_idle+0x42/0x45 > > [<ffffffff802484e5>] cpu_idle+0x5b/0x7a > > [<ffffffff8065b88a>] start_secondary+0x4e0/0x4f6 > > > > BUG: scheduling while atomic: swapper/0x10000100/0 > > > > Call Trace: > > <IRQ> [<ffffffff802607d0>] __sched_text_start+0x60/0xb27 > > [<ffffffff8802c8a1>] :tg3:tg3_setup_copper_phy+0x9d9/0xad9 > > [<ffffffff8026f8d5>] smp_local_timer_interrupt+0x34/0x5b > > [<ffffffff8802d6d4>] :tg3:tg3_setup_phy+0xd33/0xe16 > > [<ffffffff8027f572>] __cond_resched+0x1c/0x44 > > [<ffffffff802613aa>] cond_resched+0x2e/0x39 > > [<ffffffff80209f5a>] kmem_cache_alloc+0x14/0x58 > > [<ffffffff8022df6f>] __alloc_skb+0x36/0x134 > > [<ffffffff804a4ea7>] rtmsg_ifinfo+0x28/0xa1 > > [<ffffffff804a4f81>] rtnetlink_event+0x61/0x68 > > [<ffffffff8028ad24>] notifier_call_chain+0x24/0x36 > > [<ffffffff8049ccad>] dev_set_mac_address+0x53/0x66 > > [<ffffffff88019648>] :bonding:alb_set_slave_mac_addr+0x4b/0x73 > > [<ffffffff88019b1e>] :bonding:alb_swap_mac_addr+0x9d/0x15c > > [<ffffffff804a02e7>] dev_mc_add+0x137/0x148 > > [<ffffffff88014338>] :bonding:bond_change_active_slave+0x1ea/0x34d > > [<ffffffff8801481d>] :bonding:bond_select_active_slave+0xbe/0xf4 > > [<ffffffff880165e5>] :bonding:bond_mii_monitor+0x401/0x45b > > [<ffffffff880161e4>] :bonding:bond_mii_monitor+0x0/0x45b > > [<ffffffff80287ed2>] run_timer_softirq+0x142/0x1c0 > > [<ffffffff80211f6a>] __do_softirq+0x5c/0xd2 > > [<ffffffff8025ef4c>] call_softirq+0x1c/0x28 > > [<ffffffff80268e95>] do_softirq+0x2c/0x87 > > [<ffffffff8026fdd7>] smp_apic_timer_interrupt+0x57/0x6c > > [<ffffffff8025691a>] mwait_idle+0x0/0x45 > > [<ffffffff8025e9f6>] apic_timer_interrupt+0x66/0x70 > > <EOI> [<ffffffff8025695c>] mwait_idle+0x42/0x45 > > [<ffffffff802484e5>] cpu_idle+0x5b/0x7a > > [<ffffffff8065b88a>] start_secondary+0x4e0/0x4f6 > > > > RTNL: assertion failed at net/core/fib_rules.c (444) > > > > Call Trace: > > <IRQ> [<ffffffff804a8abb>] fib_rules_event+0x3b/0x120 > > [<ffffffff8028ad24>] notifier_call_chain+0x24/0x36 > > [<ffffffff8049ccad>] dev_set_mac_address+0x53/0x66 > > [<ffffffff88019648>] :bonding:alb_set_slave_mac_addr+0x4b/0x73 > > [<ffffffff88019b1e>] :bonding:alb_swap_mac_addr+0x9d/0x15c > > [<ffffffff804a02e7>] dev_mc_add+0x137/0x148 > > [<ffffffff88014338>] :bonding:bond_change_active_slave+0x1ea/0x34d > > [<ffffffff8801481d>] :bonding:bond_select_active_slave+0xbe/0xf4 > > [<ffffffff880165e5>] :bonding:bond_mii_monitor+0x401/0x45b > > [<ffffffff880161e4>] :bonding:bond_mii_monitor+0x0/0x45b > > [<ffffffff80287ed2>] run_timer_softirq+0x142/0x1c0 > > [<ffffffff80211f6a>] __do_softirq+0x5c/0xd2 > > [<ffffffff8025ef4c>] call_softirq+0x1c/0x28 > > [<ffffffff80268e95>] do_softirq+0x2c/0x87 > > [<ffffffff8026fdd7>] smp_apic_timer_interrupt+0x57/0x6c > > [<ffffffff8025691a>] mwait_idle+0x0/0x45 > > [<ffffffff8025e9f6>] apic_timer_interrupt+0x66/0x70 > > <EOI> [<ffffffff8025695c>] mwait_idle+0x42/0x45 > > [<ffffffff802484e5>] cpu_idle+0x5b/0x7a > > [<ffffffff8065b88a>] start_secondary+0x4e0/0x4f6 > > > > BUG: scheduling while atomic: swapper/0x10000100/0 > > > > Call Trace: > > <IRQ> [<ffffffff802607d0>] __sched_text_start+0x60/0xb27 > > [<ffffffff8026f8d5>] smp_local_timer_interrupt+0x34/0x5b > > [<ffffffff8027f572>] __cond_resched+0x1c/0x44 > > [<ffffffff802613aa>] cond_resched+0x2e/0x39 > > [<ffffffff80262029>] mutex_lock+0x9/0x18 > > [<ffffffff8049ea76>] netdev_run_todo+0x16/0x230 > > [<ffffffff804bcc75>] dst_rcu_free+0x0/0x3f > > [<ffffffff804d9c29>] inetdev_event+0x29/0x2d0 > > [<ffffffff80263138>] _spin_lock_bh+0x9/0x19 > > [<ffffffff8023d84a>] rt_run_flush+0x92/0xcc > > [<ffffffff8028ad24>] notifier_call_chain+0x24/0x36 > > [<ffffffff8049ccad>] dev_set_mac_address+0x53/0x66 > > [<ffffffff88019648>] :bonding:alb_set_slave_mac_addr+0x4b/0x73 > > [<ffffffff88019b1e>] :bonding:alb_swap_mac_addr+0x9d/0x15c > > [<ffffffff804a02e7>] dev_mc_add+0x137/0x148 > > [<ffffffff88014338>] :bonding:bond_change_active_slave+0x1ea/0x34d > > [<ffffffff8801481d>] :bonding:bond_select_active_slave+0xbe/0xf4 > > [<ffffffff880165e5>] :bonding:bond_mii_monitor+0x401/0x45b > > [<ffffffff880161e4>] :bonding:bond_mii_monitor+0x0/0x45b > > [<ffffffff80287ed2>] run_timer_softirq+0x142/0x1c0 > > [<ffffffff80211f6a>] __do_softirq+0x5c/0xd2 > > [<ffffffff8025ef4c>] call_softirq+0x1c/0x28 > > [<ffffffff80268e95>] do_softirq+0x2c/0x87 > > [<ffffffff8026fdd7>] smp_apic_timer_interrupt+0x57/0x6c > > [<ffffffff8025691a>] mwait_idle+0x0/0x45 > > [<ffffffff8025e9f6>] apic_timer_interrupt+0x66/0x70 > > <EOI> [<ffffffff8025695c>] mwait_idle+0x42/0x45 > > [<ffffffff802484e5>] cpu_idle+0x5b/0x7a > > [<ffffffff8065b88a>] start_secondary+0x4e0/0x4f6 > > > > RTNL: assertion failed at net/ipv4/devinet.c (1055) > > > > Call Trace: > > <IRQ> [<ffffffff804d9c48>] inetdev_event+0x48/0x2d0 > > [<ffffffff80263138>] _spin_lock_bh+0x9/0x19 > > [<ffffffff8023d84a>] rt_run_flush+0x92/0xcc > > [<ffffffff8028ad24>] notifier_call_chain+0x24/0x36 > > [<ffffffff8049ccad>] dev_set_mac_address+0x53/0x66 > > [<ffffffff88019648>] :bonding:alb_set_slave_mac_addr+0x4b/0x73 > > [<ffffffff88019b1e>] :bonding:alb_swap_mac_addr+0x9d/0x15c > > [<ffffffff804a02e7>] dev_mc_add+0x137/0x148 > > [<ffffffff88014338>] :bonding:bond_change_active_slave+0x1ea/0x34d > > [<ffffffff8801481d>] :bonding:bond_select_active_slave+0xbe/0xf4 > > [<ffffffff880165e5>] :bonding:bond_mii_monitor+0x401/0x45b > > [<ffffffff880161e4>] :bonding:bond_mii_monitor+0x0/0x45b > > [<ffffffff80287ed2>] run_timer_softirq+0x142/0x1c0 > > [<ffffffff80211f6a>] __do_softirq+0x5c/0xd2 > > [<ffffffff8025ef4c>] call_softirq+0x1c/0x28 > > [<ffffffff80268e95>] do_softirq+0x2c/0x87 > > [<ffffffff8026fdd7>] smp_apic_timer_interrupt+0x57/0x6c > > [<ffffffff8025691a>] mwait_idle+0x0/0x45 > > [<ffffffff8025e9f6>] apic_timer_interrupt+0x66/0x70 > > <EOI> [<ffffffff8025695c>] mwait_idle+0x42/0x45 > > [<ffffffff802484e5>] cpu_idle+0x5b/0x7a > > [<ffffffff8065b88a>] start_secondary+0x4e0/0x4f6 > > > > bonding: bond0: first active interface up! > > NET: Registered protocol family 10 > > lo: Disabled Privacy Extensions > > ADDRCONF(NETDEV_UP): eth1: link is not ready > > bond0: no IPv6 routers present > > eth0: no IPv6 routers present > > Installing knfsd (copyright (C) 1996 [EMAIL PROTECTED]). > > NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory > > NFSD: starting 90-second grace period > >
I've been working off and on for a little while to resolve these issues and even posted a patch not long ago to address some these by removing the timers and using workqueues instead. This enabled resolution of quite a few of the issues with bonding since the code was no longer running in an atomic context and could now more easily take locks. On the side I've also been working to keep the timers and take the rtnl lock in the correct place so avoid messages like these: > > RTNL: assertion failed at net/ipv4/devinet.c (1055) > > > > Call Trace: > > <IRQ> [<ffffffff804d9c48>] inetdev_event+0x48/0x2d0 > > [<ffffffff80263138>] _spin_lock_bh+0x9/0x19 > > [<ffffffff8023d84a>] rt_run_flush+0x92/0xcc but I recently have been getting a panic on one of my systems and need to get a serial cable so I can get the full string, so I haven't debugged that yet. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
