Re: [Bugme-new] [Bug 8561] New: list_add corruption. prev->next should be next (f7d28794), but was f0df8ed4

A Friday 01 June 2007 17:44:23, Alan Stern escreveu:
> On Fri, 1 Jun 2007, Andrew Morton wrote:
> > > I'm using vanilla kernel 2.6.22-rc3 (and I try'ed with 2.6.21-fc7
> > > fedora kernel) with a huawei e220 3g, and when I open amule after
> > > sometime kernel panics:
> > > _
> > > list_add corruption. prev->next should be next (f7d28794), but was
> > > f0df8ed4 (prev=f0df8ed4)
> > > Kernel Bug at lib/list_debug.c:33
> > >
> > > CPU: 0
> > > EIP: 0060:[<c04ddda5>] Not tainted VLI
> > > EFLAGS: 00010092 (2.6.22_rc3 #1)
> > > EIP is at __list_add+0x48/0x5c
> > > eax: 00000061___ebx: f0df8ed4___ecx: c06ced10___edx:00000086
> > > esi: f0df8ed4___edi: 00000246___ebp: f7d28788___esp: c0750e68
> > > ds: 007b________es: 007b________fs: 00d8________gs: 0033________ss:
> > > 0068 Process Amule (pid: 9719, ti=c0750000 task=d1da38b0
> > > task.ti=c7899000) Satck:
> > > _co69461e________f7d28794________f0df8ed4________f0df8ed4________f0df8e
> > >c0________ffffffff________c0558f09________ 00000040
> > > ________00000021________f9316564________c180a120________00000000_______
> > >_d4884800________00000020________f7ece200________000000fc
> > > ________f7a45000________db1c8000________00000001________00000040_______
> > >_f90b8da0________f7a45000________d3740000________c409e470 Call Trace:
> > > ________[<c0558f09>] usb_hcd_sumit_urb+0x9a/0x778
> > > ________[<f9316564>] ppp_async_push+0x38c/0x398 [ppp_async]
> >
> > Could be a ppp bug, more likely a USB bug, but that's a well-tested code
> > path.
> >
> > Greg? Anyone?  ANy idea where to start looking?
>
> Maybe the serial device driver is submitting an URB that is already in
> use.  This patch might catch the error.
>
> Alan Stern
>
>
>
> Index: usb-2.6/drivers/usb/core/urb.c
> ===================================================================
> --- usb-2.6.orig/drivers/usb/core/urb.c
> +++ usb-2.6/drivers/usb/core/urb.c
> @@ -233,6 +233,12 @@ int usb_submit_urb(struct urb *urb, gfp_
>
>  			|| dev->state == USB_STATE_SUSPENDED)
>
>  		return -EHOSTUNREACH;
>
> +	/* Not a precise test, but useful for debugging */
> +	if (urb->status == -EINPROGRESS) {
> +		WARN_ON(1);
> +		return -EBUSY;
> +	}
> +
>  	urb->status = -EINPROGRESS;
>  	urb->actual_length = 0;


The patch that you send is not resolving the problem... :( 
I stil have Kernel panic after 45/60 min of work with Ktorrent/Amule...

The Drump is:

Call Trace:
[<c055fb36>] usb_hcd_submit+0xb1/0x763
[<f9276488>] ipt_do_table+0x2c7/0x2ef [ip_tables]
[<f929a6d7>] nf_ct_deliver_cached_events+0x41/0x96 [nf_conntrak]
[<f9288254>] ipv4_confirm+0x36/0c3b [nf_conntrack_ipv4]
[<c05ce7c2>] tcp_v4_rcv+0x827/0x899
[<c05afcc0>] nf_hook_slow+0x4d/0xb5
[<c042826f>] irq_enter+0x19/0x23
[<c042826f>] irq_enter+0x19/0x23
[<c040794c>] do_IRQ+0xbd/0xd1
[<f90893c9>] option_write+0xa7/0xef [option]
[<f90ba586>] serial_write+0x9c/0xab [usbserial]
[<f9b3b27e>] ppp_async_push+0xa6/0x398 [ppp_async]
[<c042ad84>] process_timeout+0x0/0x5
[<f9b3ba32>] ppp_async_process+0x42/0x56 [ppp_async]
[<c04282c4>] tasklet_action+0x4b/0xa4
[<c04281f9>] __do_softirq+0x5d/0xba
[<c0407837>] do_softirq+0x59/0xb1
[<c04280a8>] irq_exit+0x38/0x6b
[<c0416be7>] smp_apic_timer_interrupt+0x72/0x7e
[<c0406028>] apic_timer_interrupt+0x28/0x30
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

Code:
	81	3c	69	c0	e8	9e	ef	f3	ff	0f	0b	eb	fe	8b	32	39	ce	74	1c	89	54	24	0c	89	74	24	
08	89	4c	24	04	c7	04	24	d1	3c	69	c0	e8	7c	ef	f3	ff	<0f>	0b	eb	fe	89	59	04	89	
0b	89	43	04	89	18	83	c4	10	5b	5e	c3	8b

EIP: [<c04e56a5>] __list_add+0x48/0x5c	SS:ESP	0068:c074ee5c
Kernel panic - not syncing: Fatal exception in interrupt
BUG: warning at ach/i386/kernel/smp.c:549/smp_call_function()	(Not tainted)

[<c0414d2>] stop_this_cpu+0x0/0x2b
[<c0414af6>] smp_call_function+0x65/0xcb
[<c0537019>] do_unblank_screen+0x2a/0x129
[<c0424640>] printk+0x1f/0x92
[<c0414b77>] smp_send_stop+0x1b/0x24
[<c0423c1a>] panic+0x54/0xea
[<c0406bc3>] die+0207/0x23b
[<c0406fe8>] do_invalid_op+0x0/0xab
[<c040708a>] do_invalid_op+0xa2/0xab
[<c04e56a5>] __list_add+0x48/0x5c
[<c0423e57>] wake_up_klogd+0x33/0x35
[<c05c340e>] tcp_ack+0x11c6/0x1743
[<c05c8de2>] __tcp_push_pending_frames+0x48c/0x798
[<c05fa59c>] error_code+0x7c/0x90
[<c04e56a5>] __list_add+0x48/0x5c
[<c055fb36>] usb_hcd_submit_urb+0xb1/0x763
[<f9276488>] ipt_do_table+0x2c7/0x2ef [ip_tables]
[<f929a6d7>] nf_ct_deliver_cached_events+0x41/0x96 [nf_conntrack]
[<f9288254>] ipv4_confirm+0x36/0x3b [nf_conntrack_ipv4]
[<c05ce7c2>] tcp_v4_rcv+0x827/0x899
[<c05afcc0>] nf_hook_slow+0x4d/0xb5
[<c042826f>] irq_enter+0x19/0x23
[<c042826f>] irq_enter+0x19/0x23
[<c040794c>] do_IRQ+0xbd/0xd1
[<f90893c9>] option_write+0xa7/0xef [option]
[<f90ba586>] serial_write+0x9c/0xab [usbserial]
[<f9b3b27e>] ppp_async_push+0xa6/0x398 [ppp_async]
[<c042ad84>] process_timeout+0x0/0x5
[<f9b3ba32>] ppp_async_process+0x42/0x56 [ppp_async]
[<c04282c4>] tasklet_action+0x4b/0xa4
[<c04281f9>] __do_softirq+0x5d/0xba
[<c0407837>] do_softirq+0x59/0xb1
[<c04280a8>] irq_exit+0x38/0x6b
[<c0416be7>] smp_apic_timer_interrupt+0x72/0x7e
[<c0406028>] apic_timer_interrupt+0x28/0x30

But now I have notification of a BUG in /var/log/messages, that is:

Jun  4 09:08:58 localhost kernel: BUG: warning at 
kernel/softirq.c:138/local_bh_enable() (Not tainted)
Jun  4 09:08:58 localhost kernel:  [<c0427fe3>] local_bh_enable+0x45/0x92
Jun  4 09:08:58 localhost kernel:  [<c05f8f1c>] cond_resched_softirq+0x2c/0x42
Jun  4 09:08:58 localhost kernel:  [<c0593a7a>] release_sock+0x4f/0x9d
Jun  4 09:08:58 localhost kernel:  [<c05bf3a3>] tcp_sendmsg+0x909/0x9f7
Jun  4 09:08:58 localhost kernel:  [<c0593a3d>] release_sock+0x12/0x9d
Jun  4 09:08:58 localhost kernel:  [<c05c03e4>] tcp_recvmsg+0x8c5/0x9d1
Jun  4 09:08:58 localhost kernel:  [<c05d7931>] inet_sendmsg+0x3b/0x45
Jun  4 09:08:58 localhost kernel:  [<c05913a8>] sock_aio_write+0xf6/0x102
Jun  4 09:08:58 localhost kernel:  [<c0472395>] do_sync_readv_writev+0xc1/0xfe
Jun  4 09:08:58 localhost kernel:  [<c0472499>] do_sync_write+0xc7/0x10a
Jun  4 09:08:58 localhost kernel:  [<c0433d61>] 
autoremove_wake_function+0x0/0x35
Jun  4 09:08:58 localhost kernel:  [<c0472cff>] vfs_write+0xbc/0x15a
Jun  4 09:08:58 localhost kernel:  [<c0473308>] sys_write+0x41/0x67
Jun  4 09:08:58 localhost kernel:  [<c0404ff0>] syscall_call+0x7/0xb
Jun  4 09:08:58 localhost kernel:  =======================
Jun  4 09:08:58 localhost kernel: No dock devices found.

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