* [uml-devel] Spinlock recursion dump from apache stress test
@ 2006-11-21 23:56 Blaisorblade
0 siblings, 0 replies; only message in thread
From: Blaisorblade @ 2006-11-21 23:56 UTC (permalink / raw)
To: user-mode-linux-devel, Jeff Dike
[-- Attachment #1: Type: text/plain, Size: 777 bytes --]
I've got it recently (with a threaded apache on a Sarge UML image, and with
debug options enabled) and since I doubt I'll have time to look at it soon,
I'm sending it here.
Some of the "sleeping inside atomic warnings" come from the exec of uml_net on
shutdown (I built a vanilla -rc6+something kernel), which is fixed by the
patch about my_execve I sent earlier and which is in -mm.
I know that some issues in style could be improved, but in this year I'm
really busy with university courses (I'm writing a parser with Boost::Spirit
for a project, which is cool but time-consuming), so I will not have time to
clean it up soon.
--
Inform me of my mistakes, so I can add them to my list!
Paolo Giarrusso, aka Blaisorblade
http://www.user-mode-linux.org/~blaisorblade
[-- Attachment #2: CrashTrace --]
[-- Type: text/plain, Size: 14869 bytes --]
[42966190.250000] BUG: spinlock recursion on CPU#0, apache2/664
[42966190.250000] lock: 0838e768, .magic: dead4ead, .owner: apache2/664, .owner_cpu: 0
[42966190.250000] 09ba7ac4: [<0805af02>] dump_stack+0x22/0x30
[42966190.250000] 09ba7adc: [<081befb8>] spin_bug+0xa8/0xb0
[42966190.250000] 09ba7b08: [<081bf134>] _raw_spin_lock+0x94/0xa0
[42966190.250000] 09ba7b24: [<0829bcce>] _spin_lock+0xe/0x10
[42966190.250000] 09ba7b30: [<080a7035>] __do_IRQ+0x25/0xe0
[42966190.250000] 09ba7b58: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7b68: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7ba0: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7bb8: [<08072c7f>] sig_handler_common_skas+0xbf/0x100
[42966190.250000] 09ba7be0: [<0806e57e>] real_alarm_handler+0x1e/0x60
[42966190.250000] 09ba7bf4: [<0806e624>] alarm_handler+0x64/0x80
[42966190.250000] 09ba7c0c: [<0807117a>] hard_handler+0x1a/0x20
[42966190.250000] 09ba7c1c: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7f1c: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7f2c: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7f64: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7f7c: [<08072d33>] user_signal+0x73/0x80
[42966190.250000] 09ba7f94: [<080724fd>] userspace+0x18d/0x230
[42966190.250000] 09ba7fe4: [<0805d3c6>] fork_handler+0x76/0x90
[42966190.250000] 09ba7ffc: [<a55a5a5a>] 0xa55a5a5a
[42966190.250000]
[42966190.250000] BUG: spinlock lockup on CPU#0, apache2/664, 0838e768
[42966190.250000] 09ba7ab0: [<0805af02>] dump_stack+0x22/0x30
[42966190.250000] 09ba7ac8: [<081bf078>] __spin_lock_debug+0xb8/0xe0
[42966190.250000] 09ba7b08: [<081bf10f>] _raw_spin_lock+0x6f/0xa0
[42966190.250000] 09ba7b24: [<0829bcce>] _spin_lock+0xe/0x10
[42966190.250000] 09ba7b30: [<080a7035>] __do_IRQ+0x25/0xe0
[42966190.250000] 09ba7b58: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7b68: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7ba0: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7bb8: [<08072c7f>] sig_handler_common_skas+0xbf/0x100
[42966190.250000] 09ba7be0: [<0806e57e>] real_alarm_handler+0x1e/0x60
[42966190.250000] 09ba7bf4: [<0806e624>] alarm_handler+0x64/0x80
[42966190.250000] 09ba7c0c: [<0807117a>] hard_handler+0x1a/0x20
[42966190.250000] 09ba7c1c: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7f1c: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7f2c: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7f64: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7f7c: [<08072d33>] user_signal+0x73/0x80
[42966190.250000] 09ba7f94: [<080724fd>] userspace+0x18d/0x230
[42966190.250000] 09ba7fe4: [<0805d3c6>] fork_handler+0x76/0x90
[42966190.250000] 09ba7ffc: [<a55a5a5a>] 0xa55a5a5a
[42966190.250000]
[42966190.250000] BUG: warning at /home/paolo/Admin/kernel/6/VCS/linux-2.6.git/kernel/irq/manage.c:358/free_irq()
[42966190.250000] 09ba7760: [<0805af02>] dump_stack+0x22/0x30
[42966190.250000] 09ba7778: [<080a76ab>] free_irq+0x11b/0x120
[42966190.250000] 09ba77a8: [<080641b7>] close_devices+0x27/0x70
[42966190.250000] 09ba77bc: [<08059b53>] do_uml_exitcalls+0x13/0x30
[42966190.250000] 09ba77c8: [<0805a312>] uml_cleanup+0x12/0x20
[42966190.250000] 09ba77d0: [<0806ca4b>] last_ditch_exit+0xb/0x20
[42966190.250000] 09ba77dc: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7ac8: [<081bf023>] __spin_lock_debug+0x63/0xe0
[42966190.250000] 09ba7b08: [<081bf10f>] _raw_spin_lock+0x6f/0xa0
[42966190.250000] 09ba7b24: [<0829bcce>] _spin_lock+0xe/0x10
[42966190.250000] 09ba7b30: [<080a7035>] __do_IRQ+0x25/0xe0
[42966190.250000] 09ba7b58: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7b68: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7ba0: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7bb8: [<08072c7f>] sig_handler_common_skas+0xbf/0x100
[42966190.250000] 09ba7be0: [<0806e57e>] real_alarm_handler+0x1e/0x60
[42966190.250000] 09ba7bf4: [<0806e624>] alarm_handler+0x64/0x80
[42966190.250000] 09ba7c0c: [<0807117a>] hard_handler+0x1a/0x20
[42966190.250000] 09ba7c1c: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7f1c: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7f2c: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7f64: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7f7c: [<08072d33>] user_signal+0x73/0x80
[42966190.250000] 09ba7f94: [<080724fd>] userspace+0x18d/0x230
[42966190.250000] 09ba7fe4: [<0805d3c6>] fork_handler+0x76/0x90
[42966190.250000] 09ba7ffc: [<a55a5a5a>] 0xa55a5a5a
[42966190.250000]
[42966190.250000] BUG: sleeping function called from invalid context at /home/paolo/Admin/kernel/6/VCS/linux-2.6.git/mm/slab.c:3007
[42966190.250000] in_atomic():1, irqs_disabled():0
[42966190.250000] 09ba7670: [<0805af02>] dump_stack+0x22/0x30
[42966190.250000] 09ba7688: [<08079504>] __might_sleep+0xa4/0xe0
[42966190.250000] 09ba76a4: [<080c8cac>] __kmalloc+0xdc/0x140
[42966190.250000] 09ba76cc: [<08059a09>] um_kmalloc+0x19/0x20
[42966190.250000] 09ba76dc: [<080649c3>] change+0xc3/0x120
[42966190.250000] 09ba7750: [<08064a77>] close_addr+0x27/0x30
[42966190.250000] 09ba7768: [<0806432e>] iter_addresses+0x3e/0x50
[42966190.250000] 09ba7790: [<08070d1a>] tuntap_close+0x2a/0x50
[42966190.250000] 09ba77a8: [<080641da>] close_devices+0x4a/0x70
[42966190.250000] 09ba77bc: [<08059b53>] do_uml_exitcalls+0x13/0x30
[42966190.250000] 09ba77c8: [<0805a312>] uml_cleanup+0x12/0x20
[42966190.250000] 09ba77d0: [<0806ca4b>] last_ditch_exit+0xb/0x20
[42966190.250000] 09ba77dc: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7ac8: [<081bf023>] __spin_lock_debug+0x63/0xe0
[42966190.250000] 09ba7b08: [<081bf10f>] _raw_spin_lock+0x6f/0xa0
[42966190.250000] 09ba7b24: [<0829bcce>] _spin_lock+0xe/0x10
[42966190.250000] 09ba7b30: [<080a7035>] __do_IRQ+0x25/0xe0
[42966190.250000] 09ba7b58: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7b68: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7ba0: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7bb8: [<08072c7f>] sig_handler_common_skas+0xbf/0x100
[42966190.250000] 09ba7be0: [<0806e57e>] real_alarm_handler+0x1e/0x60
[42966190.250000] 09ba7bf4: [<0806e624>] alarm_handler+0x64/0x80
[42966190.250000] 09ba7c0c: [<0807117a>] hard_handler+0x1a/0x20
[42966190.250000] 09ba7c1c: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7f1c: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7f2c: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7f64: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7f7c: [<08072d33>] user_signal+0x73/0x80
[42966190.250000] 09ba7f94: [<080724fd>] userspace+0x18d/0x230
[42966190.250000] 09ba7fe4: [<0805d3c6>] fork_handler+0x76/0x90
[42966190.250000] 09ba7ffc: [<a55a5a5a>] 0xa55a5a5a
[42966190.250000]
[42966190.250000] * route del -host 192.168.0.6 dev tap1
[42966190.250000] * bash -c echo 0 > /proc/sys/net/ipv4/conf/tap1/proxy_arp
[42966190.250000] * arp -i eth0 -d 192.168.0.6 pub
[42966190.250000] BUG: warning at /home/paolo/Admin/kernel/6/VCS/linux-2.6.git/kernel/irq/manage.c:358/free_irq()
[42966190.250000] 09ba7750: [<0805af02>] dump_stack+0x22/0x30
[42966190.250000] 09ba7768: [<080a76ab>] free_irq+0x11b/0x120
[42966190.250000] 09ba7798: [<08060d8a>] free_winch+0x4a/0x60
[42966190.250000] 09ba77ac: [<08060e1b>] winch_cleanup+0x2b/0x50
[42966190.250000] 09ba77bc: [<08059b53>] do_uml_exitcalls+0x13/0x30
[42966190.250000] 09ba77c8: [<0805a312>] uml_cleanup+0x12/0x20
[42966190.250000] 09ba77d0: [<0806ca4b>] last_ditch_exit+0xb/0x20
[42966190.250000] 09ba77dc: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7ac8: [<081bf023>] __spin_lock_debug+0x63/0xe0
[42966190.250000] 09ba7b08: [<081bf10f>] _raw_spin_lock+0x6f/0xa0
[42966190.250000] 09ba7b24: [<0829bcce>] _spin_lock+0xe/0x10
[42966190.250000] 09ba7b30: [<080a7035>] __do_IRQ+0x25/0xe0
[42966190.250000] 09ba7b58: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7b68: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7ba0: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7bb8: [<08072c7f>] sig_handler_common_skas+0xbf/0x100
[42966190.250000] 09ba7be0: [<0806e57e>] real_alarm_handler+0x1e/0x60
[42966190.250000] 09ba7bf4: [<0806e624>] alarm_handler+0x64/0x80
[42966190.250000] 09ba7c0c: [<0807117a>] hard_handler+0x1a/0x20
[42966190.250000] 09ba7c1c: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7f1c: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7f2c: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7f64: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7f7c: [<08072d33>] user_signal+0x73/0x80
[42966190.250000] 09ba7f94: [<080724fd>] userspace+0x18d/0x230
[42966190.250000] 09ba7fe4: [<0805d3c6>] fork_handler+0x76/0x90
[42966190.250000] 09ba7ffc: [<a55a5a5a>] 0xa55a5a5a
[42966190.250000]
[42966190.250000] BUG: warning at /home/paolo/Admin/kernel/6/VCS/linux-2.6.git/kernel/irq/manage.c:358/free_irq()
[42966190.250000] 09ba7750: [<0805af02>] dump_stack+0x22/0x30
[42966190.250000] 09ba7768: [<080a76ab>] free_irq+0x11b/0x120
[42966190.250000] 09ba7798: [<08060d8a>] free_winch+0x4a/0x60
[42966190.250000] 09ba77ac: [<08060e1b>] winch_cleanup+0x2b/0x50
[42966190.250000] 09ba77bc: [<08059b53>] do_uml_exitcalls+0x13/0x30
[42966190.250000] 09ba77c8: [<0805a312>] uml_cleanup+0x12/0x20
[42966190.250000] 09ba77d0: [<0806ca4b>] last_ditch_exit+0xb/0x20
[42966190.250000] 09ba77dc: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7ac8: [<081bf023>] __spin_lock_debug+0x63/0xe0
[42966190.250000] 09ba7b08: [<081bf10f>] _raw_spin_lock+0x6f/0xa0
[42966190.250000] 09ba7b24: [<0829bcce>] _spin_lock+0xe/0x10
[42966190.250000] 09ba7b30: [<080a7035>] __do_IRQ+0x25/0xe0
[42966190.250000] 09ba7b58: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7b68: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7ba0: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7bb8: [<08072c7f>] sig_handler_common_skas+0xbf/0x100
[42966190.250000] 09ba7be0: [<0806e57e>] real_alarm_handler+0x1e/0x60
[42966190.250000] 09ba7bf4: [<0806e624>] alarm_handler+0x64/0x80
[42966190.250000] 09ba7c0c: [<0807117a>] hard_handler+0x1a/0x20
[42966190.250000] 09ba7c1c: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7f1c: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7f2c: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7f64: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7f7c: [<08072d33>] user_signal+0x73/0x80
[42966190.250000] 09ba7f94: [<080724fd>] userspace+0x18d/0x230
[42966190.250000] 09ba7fe4: [<0805d3c6>] fork_handler+0x76/0x90
[42966190.250000] 09ba7ffc: [<a55a5a5a>] 0xa55a5a5a
[42966190.250000]
[42966190.250000] BUG: warning at /home/paolo/Admin/kernel/6/VCS/linux-2.6.git/kernel/irq/manage.c:358/free_irq()
[42966190.250000] 09ba7718: [<0805af02>] dump_stack+0x22/0x30
[42966190.250000] 09ba7730: [<080a76ab>] free_irq+0x11b/0x120
[42966190.250000] 09ba7760: [<0805ec1c>] close_one_chan+0x7c/0xa0
[42966190.250000] 09ba7774: [<0805ec62>] close_chan+0x22/0x40
[42966190.250000] 09ba7790: [<0806059d>] close_lines+0x3d/0x50
[42966190.250000] 09ba77ac: [<0805e4d6>] console_exit+0x26/0x30
[42966190.250000] 09ba77bc: [<08059b53>] do_uml_exitcalls+0x13/0x30
[42966190.250000] 09ba77c8: [<0805a312>] uml_cleanup+0x12/0x20
[42966190.250000] 09ba77d0: [<0806ca4b>] last_ditch_exit+0xb/0x20
[42966190.250000] 09ba77dc: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7ac8: [<081bf023>] __spin_lock_debug+0x63/0xe0
[42966190.250000] 09ba7b08: [<081bf10f>] _raw_spin_lock+0x6f/0xa0
[42966190.250000] 09ba7b24: [<0829bcce>] _spin_lock+0xe/0x10
[42966190.250000] 09ba7b30: [<080a7035>] __do_IRQ+0x25/0xe0
[42966190.250000] 09ba7b58: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7b68: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7ba0: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7bb8: [<08072c7f>] sig_handler_common_skas+0xbf/0x100
[42966190.250000] 09ba7be0: [<0806e57e>] real_alarm_handler+0x1e/0x60
[42966190.250000] 09ba7bf4: [<0806e624>] alarm_handler+0x64/0x80
[42966190.250000] 09ba7c0c: [<0807117a>] hard_handler+0x1a/0x20
[42966190.250000] 09ba7c1c: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7f1c: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7f2c: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7f64: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7f7c: [<08072d33>] user_signal+0x73/0x80
[42966190.250000] 09ba7f94: [<080724fd>] userspace+0x18d/0x230
[42966190.250000] 09ba7fe4: [<0805d3c6>] fork_handler+0x76/0x90
[42966190.250000] 09ba7ffc: [<a55a5a5a>] 0xa55a5a5a
[42966190.250000]
[42966190.250000] BUG: warning at /home/paolo/Admin/kernel/6/VCS/linux-2.6.git/kernel/irq/manage.c:358/free_irq()
[42966190.250000] 09ba7718: [<0805af02>] dump_stack+0x22/0x30
[42966190.250000] 09ba7730: [<080a76ab>] free_irq+0x11b/0x120
[42966190.250000] 09ba7760: [<0805ec39>] close_one_chan+0x99/0xa0
[42966190.250000] 09ba7774: [<0805ec62>] close_chan+0x22/0x40
[42966190.250000] 09ba7790: [<0806059d>] close_lines+0x3d/0x50
[42966190.250000] 09ba77ac: [<0805e4d6>] console_exit+0x26/0x30
[42966190.250000] 09ba77bc: [<08059b53>] do_uml_exitcalls+0x13/0x30
[42966190.250000] 09ba77c8: [<0805a312>] uml_cleanup+0x12/0x20
[42966190.250000] 09ba77d0: [<0806ca4b>] last_ditch_exit+0xb/0x20
[42966190.250000] 09ba77dc: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7ac8: [<081bf023>] __spin_lock_debug+0x63/0xe0
[42966190.250000] 09ba7b08: [<081bf10f>] _raw_spin_lock+0x6f/0xa0
[42966190.250000] 09ba7b24: [<0829bcce>] _spin_lock+0xe/0x10
[42966190.250000] 09ba7b30: [<080a7035>] __do_IRQ+0x25/0xe0
[42966190.250000] 09ba7b58: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7b68: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7ba0: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7bb8: [<08072c7f>] sig_handler_common_skas+0xbf/0x100
[42966190.250000] 09ba7be0: [<0806e57e>] real_alarm_handler+0x1e/0x60
[42966190.250000] 09ba7bf4: [<0806e624>] alarm_handler+0x64/0x80
[42966190.250000] 09ba7c0c: [<0807117a>] hard_handler+0x1a/0x20
[42966190.250000] 09ba7c1c: [<ffffe500>] _etext+0xf7d60155/0x0
[42966190.250000] 09ba7f1c: [<08058341>] do_IRQ+0x31/0x50
[42966190.250000] 09ba7f2c: [<0805b174>] timer_irq+0x124/0x180
[42966190.250000] 09ba7f64: [<0805b4f1>] timer_handler+0x51/0x60
[42966190.250000] 09ba7f7c: [<08072d33>] user_signal+0x73/0x80
[42966190.250000] 09ba7f94: [<080724fd>] userspace+0x18d/0x230
[42966190.250000] 09ba7fe4: [<0805d3c6>] fork_handler+0x76/0x90
[42966190.250000] 09ba7ffc: [<a55a5a5a>] 0xa55a5a5a
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2006-11-21 23:56 [uml-devel] Spinlock recursion dump from apache stress test Blaisorblade
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