* 2.6.26-rc1: warnings from sysfs, bluetooth related
@ 2008-05-11 16:19 Pavel Machek
2008-05-12 2:05 ` Dave Young
0 siblings, 1 reply; 3+ messages in thread
From: Pavel Machek @ 2008-05-11 16:19 UTC (permalink / raw
To: kernel list, gregkh, marcel, linux-bluetooth
Hi!
I'm getting these from rfcomm...
Pavel
host4: resumed
scsi 4:0:0:0: Direct-Access OLYMPUS C765UZ 1.00 PQ: 0 ANSI: 2
sd 4:0:0:0: [sdb] 32000 512-byte hardware sectors (16 MB)
sd 4:0:0:0: [sdb] Write Protect is off
sd 4:0:0:0: [sdb] Mode Sense: 18 00 00 08
sd 4:0:0:0: [sdb] Assuming drive cache: write through
sd 4:0:0:0: [sdb] 32000 512-byte hardware sectors (16 MB)
sd 4:0:0:0: [sdb] Write Protect is off
sd 4:0:0:0: [sdb] Mode Sense: 18 00 00 08
sd 4:0:0:0: [sdb] Assuming drive cache: write through
sdb: sdb1
sd 4:0:0:0: [sdb] Attached SCSI removable disk
sd 4:0:0:0: Attached scsi generic sg1 type 0
usb-storage: device scan complete
hci_cmd_task: hci0 command tx timeout
usb 5-1: USB disconnect, address 2
btusb_bulk_complete: hci0 urb f6191550 failed to resubmit (19)
btusb_bulk_complete: hci0 urb f6879090 failed to resubmit (19)
btusb_send_frame: hci0 urb f6879090 submission failed
hub 1-0:1.0: unable to enumerate USB device on port 7
usb 5-1: new full speed USB device using uhci_hcd and address 4
usb 5-1: configuration #1 chosen from 1 choice
usb 5-1: New USB device found, idVendor=0a5c, idProduct=2110
usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 5-1: Product: BCM2045B
usb 5-1: Manufacturer: Broadcom Corp
sysfs: duplicate filename 'rfcomm0' can not be created
------------[ cut here ]------------
WARNING: at /data/l/linux/fs/sysfs/dir.c:425 sysfs_add_one+0x85/0xa0()
Modules linked in:
Pid: 2011, comm: rfcomm Tainted: G W 2.6.26-rc1 #289
[<c022a2af>] warn_on_slowpath+0x5f/0x90
[<c021c9e8>] __wake_up_common+0x48/0x70
[<c02203e8>] __wake_up+0x38/0x50
[<c022aa8b>] wake_up_klogd+0x3b/0x40
[<c038510b>] ida_get_new_above+0x7b/0x180
[<c02bd400>] sysfs_ilookup_test+0x0/0x10
[<c0751214>] _spin_unlock+0x14/0x20
[<c029037f>] ifind+0x8f/0xa0
[<c022b23b>] printk+0x1b/0x20
[<c02bd775>] sysfs_add_one+0x85/0xa0
[<c02bdcc8>] create_dir+0x48/0x90
[<c02bdd39>] sysfs_create_dir+0x29/0x50
[<c0751214>] _spin_unlock+0x14/0x20
[<c0385d66>] kobject_add_internal+0xb6/0x190
[<c0385eb9>] kobject_set_name_vargs+0x29/0x50
[<c0386201>] kobject_add+0x31/0x60
[<c0385c2f>] kobject_get+0xf/0x20
[<c04235ef>] device_add+0x9f/0x500
[<c042326e>] device_initialize+0xce/0xf0
[<c0423aeb>] device_create+0x8b/0xc0
[<c03e6219>] tty_register_device+0x69/0xf0
[<c038a2a4>] vsnprintf+0x544/0x600
[<c038e982>] __spin_lock_init+0x32/0x60
[<c07512d9>] _spin_lock+0x29/0x40
[<c06e20ea>] rfcomm_dev_ioctl+0x53a/0x690
[<c06e01be>] rfcomm_sock_ioctl+0x1e/0x50
[<c06e01c9>] rfcomm_sock_ioctl+0x29/0x50
[<c0625e16>] sock_ioctl+0xb6/0x1d0
[<c0625d60>] sock_ioctl+0x0/0x1d0
[<c0288e8b>] vfs_ioctl+0x2b/0x90
[<c0288f4c>] do_vfs_ioctl+0x5c/0x2a0
[<c02891cd>] sys_ioctl+0x3d/0x70
[<c0203c2a>] syscall_call+0x7/0xb
=======================
---[ end trace a0614c8bfea95988 ]---
kobject_add_internal failed for rfcomm0 with -EEXIST, don't try to register things with the same name in the same directory.
Pid: 2011, comm: rfcomm Tainted: G W 2.6.26-rc1 #289
[<c0385de7>] kobject_add_internal+0x137/0x190
[<c0386201>] kobject_add+0x31/0x60
[<c0385c2f>] kobject_get+0xf/0x20
[<c04235ef>] device_add+0x9f/0x500
[<c042326e>] device_initialize+0xce/0xf0
[<c0423aeb>] device_create+0x8b/0xc0
[<c03e6219>] tty_register_device+0x69/0xf0
[<c038a2a4>] vsnprintf+0x544/0x600
[<c038e982>] __spin_lock_init+0x32/0x60
[<c07512d9>] _spin_lock+0x29/0x40
[<c06e20ea>] rfcomm_dev_ioctl+0x53a/0x690
[<c06e01be>] rfcomm_sock_ioctl+0x1e/0x50
[<c06e01c9>] rfcomm_sock_ioctl+0x29/0x50
[<c0625e16>] sock_ioctl+0xb6/0x1d0
[<c0625d60>] sock_ioctl+0x0/0x1d0
[<c0288e8b>] vfs_ioctl+0x2b/0x90
[<c0288f4c>] do_vfs_ioctl+0x5c/0x2a0
[<c02891cd>] sys_ioctl+0x3d/0x70
[<c0203c2a>] syscall_call+0x7/0xb
=======================
sysfs: duplicate filename 'rfcomm0' can not be created
------------[ cut here ]------------
WARNING: at /data/l/linux/fs/sysfs/dir.c:425 sysfs_add_one+0x85/0xa0()
Modules linked in:
Pid: 2104, comm: rfcomm Tainted: G W 2.6.26-rc1 #289
[<c022a2af>] warn_on_slowpath+0x5f/0x90
[<c021c9e8>] __wake_up_common+0x48/0x70
[<c02203e8>] __wake_up+0x38/0x50
[<c022aa8b>] wake_up_klogd+0x3b/0x40
[<c038510b>] ida_get_new_above+0x7b/0x180
[<c02bd400>] sysfs_ilookup_test+0x0/0x10
[<c0751214>] _spin_unlock+0x14/0x20
[<c029037f>] ifind+0x8f/0xa0
[<c022b23b>] printk+0x1b/0x20
[<c02bd775>] sysfs_add_one+0x85/0xa0
[<c02bdcc8>] create_dir+0x48/0x90
[<c02bdd39>] sysfs_create_dir+0x29/0x50
[<c0751214>] _spin_unlock+0x14/0x20
[<c0385d66>] kobject_add_internal+0xb6/0x190
[<c0385eb9>] kobject_set_name_vargs+0x29/0x50
[<c0386201>] kobject_add+0x31/0x60
[<c0385c2f>] kobject_get+0xf/0x20
[<c04235ef>] device_add+0x9f/0x500
[<c042326e>] device_initialize+0xce/0xf0
[<c0423aeb>] device_create+0x8b/0xc0
[<c03e6219>] tty_register_device+0x69/0xf0
[<c038a2a4>] vsnprintf+0x544/0x600
[<c038e982>] __spin_lock_init+0x32/0x60
[<c07512d9>] _spin_lock+0x29/0x40
[<c06e20ea>] rfcomm_dev_ioctl+0x53a/0x690
[<c06e01be>] rfcomm_sock_ioctl+0x1e/0x50
[<c06e01c9>] rfcomm_sock_ioctl+0x29/0x50
[<c0625e16>] sock_ioctl+0xb6/0x1d0
[<c0625d60>] sock_ioctl+0x0/0x1d0
[<c0288e8b>] vfs_ioctl+0x2b/0x90
[<c0288f4c>] do_vfs_ioctl+0x5c/0x2a0
[<c02891cd>] sys_ioctl+0x3d/0x70
[<c0203c2a>] syscall_call+0x7/0xb
=======================
---[ end trace a0614c8bfea95988 ]---
kobject_add_internal failed for rfcomm0 with -EEXIST, don't try to register things with the same name in the same directory.
Pid: 2104, comm: rfcomm Tainted: G W 2.6.26-rc1 #289
[<c0385de7>] kobject_add_internal+0x137/0x190
[<c0386201>] kobject_add+0x31/0x60
[<c0385c2f>] kobject_get+0xf/0x20
[<c04235ef>] device_add+0x9f/0x500
[<c042326e>] device_initialize+0xce/0xf0
[<c0423aeb>] device_create+0x8b/0xc0
[<c03e6219>] tty_register_device+0x69/0xf0
[<c038a2a4>] vsnprintf+0x544/0x600
[<c038e982>] __spin_lock_init+0x32/0x60
[<c07512d9>] _spin_lock+0x29/0x40
[<c06e20ea>] rfcomm_dev_ioctl+0x53a/0x690
[<c06e01be>] rfcomm_sock_ioctl+0x1e/0x50
[<c06e01c9>] rfcomm_sock_ioctl+0x29/0x50
[<c0625e16>] sock_ioctl+0xb6/0x1d0
[<c0625d60>] sock_ioctl+0x0/0x1d0
[<c0288e8b>] vfs_ioctl+0x2b/0x90
[<c0288f4c>] do_vfs_ioctl+0x5c/0x2a0
[<c02891cd>] sys_ioctl+0x3d/0x70
[<c0203c2a>] syscall_call+0x7/0xb
=======================
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: 2.6.26-rc1: warnings from sysfs, bluetooth related
2008-05-11 16:19 2.6.26-rc1: warnings from sysfs, bluetooth related Pavel Machek
@ 2008-05-12 2:05 ` Dave Young
2008-05-15 18:17 ` Pavel Machek
0 siblings, 1 reply; 3+ messages in thread
From: Dave Young @ 2008-05-12 2:05 UTC (permalink / raw
To: Pavel Machek; +Cc: kernel list, gregkh, marcel, linux-bluetooth
On Mon, May 12, 2008 at 12:19 AM, Pavel Machek <pavel@suse.cz> wrote:
>
> Hi!
>
> I'm getting these from rfcomm...
Are you sure it's a regression?
Dont know if it's same bug as BUG 10341. I just describe the problem
in bug 10341:
While a rfcomm device is opened more than once, the BUG 10341 can be triggered.
rfcomm dev reference will be held for every rfcomm_tty_open, but release_dev
will hangup the tty and release the dev number for free use without
judge the dev->opened.
rfcomm_dev_state_change and rfcomm_tty_hangup could del the rfcomm dev
as well, the problem is similar as above.
If the create_dev called before the last tty_close, sysfs will
warning and create will fail.
I have a patch which don't hold the dev reference in rfcomm_tty_open,
but it need some review and test.
please see:
http://bugzilla.kernel.org/attachment.cgi?id=15746
Marcel, do you have idea about this? or other solution?
>
> Pavel
>
> host4: resumed
> scsi 4:0:0:0: Direct-Access OLYMPUS C765UZ 1.00 PQ: 0 ANSI: 2
> sd 4:0:0:0: [sdb] 32000 512-byte hardware sectors (16 MB)
> sd 4:0:0:0: [sdb] Write Protect is off
> sd 4:0:0:0: [sdb] Mode Sense: 18 00 00 08
> sd 4:0:0:0: [sdb] Assuming drive cache: write through
> sd 4:0:0:0: [sdb] 32000 512-byte hardware sectors (16 MB)
> sd 4:0:0:0: [sdb] Write Protect is off
> sd 4:0:0:0: [sdb] Mode Sense: 18 00 00 08
> sd 4:0:0:0: [sdb] Assuming drive cache: write through
> sdb: sdb1
> sd 4:0:0:0: [sdb] Attached SCSI removable disk
> sd 4:0:0:0: Attached scsi generic sg1 type 0
> usb-storage: device scan complete
> hci_cmd_task: hci0 command tx timeout
> usb 5-1: USB disconnect, address 2
> btusb_bulk_complete: hci0 urb f6191550 failed to resubmit (19)
> btusb_bulk_complete: hci0 urb f6879090 failed to resubmit (19)
> btusb_send_frame: hci0 urb f6879090 submission failed
> hub 1-0:1.0: unable to enumerate USB device on port 7
> usb 5-1: new full speed USB device using uhci_hcd and address 4
> usb 5-1: configuration #1 chosen from 1 choice
> usb 5-1: New USB device found, idVendor=0a5c, idProduct=2110
> usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> usb 5-1: Product: BCM2045B
> usb 5-1: Manufacturer: Broadcom Corp
> sysfs: duplicate filename 'rfcomm0' can not be created
> ------------[ cut here ]------------
> WARNING: at /data/l/linux/fs/sysfs/dir.c:425 sysfs_add_one+0x85/0xa0()
> Modules linked in:
> Pid: 2011, comm: rfcomm Tainted: G W 2.6.26-rc1 #289
> [<c022a2af>] warn_on_slowpath+0x5f/0x90
> [<c021c9e8>] __wake_up_common+0x48/0x70
> [<c02203e8>] __wake_up+0x38/0x50
> [<c022aa8b>] wake_up_klogd+0x3b/0x40
> [<c038510b>] ida_get_new_above+0x7b/0x180
> [<c02bd400>] sysfs_ilookup_test+0x0/0x10
> [<c0751214>] _spin_unlock+0x14/0x20
> [<c029037f>] ifind+0x8f/0xa0
> [<c022b23b>] printk+0x1b/0x20
> [<c02bd775>] sysfs_add_one+0x85/0xa0
> [<c02bdcc8>] create_dir+0x48/0x90
> [<c02bdd39>] sysfs_create_dir+0x29/0x50
> [<c0751214>] _spin_unlock+0x14/0x20
> [<c0385d66>] kobject_add_internal+0xb6/0x190
> [<c0385eb9>] kobject_set_name_vargs+0x29/0x50
> [<c0386201>] kobject_add+0x31/0x60
> [<c0385c2f>] kobject_get+0xf/0x20
> [<c04235ef>] device_add+0x9f/0x500
> [<c042326e>] device_initialize+0xce/0xf0
> [<c0423aeb>] device_create+0x8b/0xc0
> [<c03e6219>] tty_register_device+0x69/0xf0
> [<c038a2a4>] vsnprintf+0x544/0x600
> [<c038e982>] __spin_lock_init+0x32/0x60
> [<c07512d9>] _spin_lock+0x29/0x40
> [<c06e20ea>] rfcomm_dev_ioctl+0x53a/0x690
> [<c06e01be>] rfcomm_sock_ioctl+0x1e/0x50
> [<c06e01c9>] rfcomm_sock_ioctl+0x29/0x50
> [<c0625e16>] sock_ioctl+0xb6/0x1d0
> [<c0625d60>] sock_ioctl+0x0/0x1d0
> [<c0288e8b>] vfs_ioctl+0x2b/0x90
> [<c0288f4c>] do_vfs_ioctl+0x5c/0x2a0
> [<c02891cd>] sys_ioctl+0x3d/0x70
> [<c0203c2a>] syscall_call+0x7/0xb
> =======================
> ---[ end trace a0614c8bfea95988 ]---
> kobject_add_internal failed for rfcomm0 with -EEXIST, don't try to register things with the same name in the same directory.
> Pid: 2011, comm: rfcomm Tainted: G W 2.6.26-rc1 #289
> [<c0385de7>] kobject_add_internal+0x137/0x190
> [<c0386201>] kobject_add+0x31/0x60
> [<c0385c2f>] kobject_get+0xf/0x20
> [<c04235ef>] device_add+0x9f/0x500
> [<c042326e>] device_initialize+0xce/0xf0
> [<c0423aeb>] device_create+0x8b/0xc0
> [<c03e6219>] tty_register_device+0x69/0xf0
> [<c038a2a4>] vsnprintf+0x544/0x600
> [<c038e982>] __spin_lock_init+0x32/0x60
> [<c07512d9>] _spin_lock+0x29/0x40
> [<c06e20ea>] rfcomm_dev_ioctl+0x53a/0x690
> [<c06e01be>] rfcomm_sock_ioctl+0x1e/0x50
> [<c06e01c9>] rfcomm_sock_ioctl+0x29/0x50
> [<c0625e16>] sock_ioctl+0xb6/0x1d0
> [<c0625d60>] sock_ioctl+0x0/0x1d0
> [<c0288e8b>] vfs_ioctl+0x2b/0x90
> [<c0288f4c>] do_vfs_ioctl+0x5c/0x2a0
> [<c02891cd>] sys_ioctl+0x3d/0x70
> [<c0203c2a>] syscall_call+0x7/0xb
> =======================
> sysfs: duplicate filename 'rfcomm0' can not be created
> ------------[ cut here ]------------
> WARNING: at /data/l/linux/fs/sysfs/dir.c:425 sysfs_add_one+0x85/0xa0()
> Modules linked in:
> Pid: 2104, comm: rfcomm Tainted: G W 2.6.26-rc1 #289
> [<c022a2af>] warn_on_slowpath+0x5f/0x90
> [<c021c9e8>] __wake_up_common+0x48/0x70
> [<c02203e8>] __wake_up+0x38/0x50
> [<c022aa8b>] wake_up_klogd+0x3b/0x40
> [<c038510b>] ida_get_new_above+0x7b/0x180
> [<c02bd400>] sysfs_ilookup_test+0x0/0x10
> [<c0751214>] _spin_unlock+0x14/0x20
> [<c029037f>] ifind+0x8f/0xa0
> [<c022b23b>] printk+0x1b/0x20
> [<c02bd775>] sysfs_add_one+0x85/0xa0
> [<c02bdcc8>] create_dir+0x48/0x90
> [<c02bdd39>] sysfs_create_dir+0x29/0x50
> [<c0751214>] _spin_unlock+0x14/0x20
> [<c0385d66>] kobject_add_internal+0xb6/0x190
> [<c0385eb9>] kobject_set_name_vargs+0x29/0x50
> [<c0386201>] kobject_add+0x31/0x60
> [<c0385c2f>] kobject_get+0xf/0x20
> [<c04235ef>] device_add+0x9f/0x500
> [<c042326e>] device_initialize+0xce/0xf0
> [<c0423aeb>] device_create+0x8b/0xc0
> [<c03e6219>] tty_register_device+0x69/0xf0
> [<c038a2a4>] vsnprintf+0x544/0x600
> [<c038e982>] __spin_lock_init+0x32/0x60
> [<c07512d9>] _spin_lock+0x29/0x40
> [<c06e20ea>] rfcomm_dev_ioctl+0x53a/0x690
> [<c06e01be>] rfcomm_sock_ioctl+0x1e/0x50
> [<c06e01c9>] rfcomm_sock_ioctl+0x29/0x50
> [<c0625e16>] sock_ioctl+0xb6/0x1d0
> [<c0625d60>] sock_ioctl+0x0/0x1d0
> [<c0288e8b>] vfs_ioctl+0x2b/0x90
> [<c0288f4c>] do_vfs_ioctl+0x5c/0x2a0
> [<c02891cd>] sys_ioctl+0x3d/0x70
> [<c0203c2a>] syscall_call+0x7/0xb
> =======================
> ---[ end trace a0614c8bfea95988 ]---
> kobject_add_internal failed for rfcomm0 with -EEXIST, don't try to register things with the same name in the same directory.
> Pid: 2104, comm: rfcomm Tainted: G W 2.6.26-rc1 #289
> [<c0385de7>] kobject_add_internal+0x137/0x190
> [<c0386201>] kobject_add+0x31/0x60
> [<c0385c2f>] kobject_get+0xf/0x20
> [<c04235ef>] device_add+0x9f/0x500
> [<c042326e>] device_initialize+0xce/0xf0
> [<c0423aeb>] device_create+0x8b/0xc0
> [<c03e6219>] tty_register_device+0x69/0xf0
> [<c038a2a4>] vsnprintf+0x544/0x600
> [<c038e982>] __spin_lock_init+0x32/0x60
> [<c07512d9>] _spin_lock+0x29/0x40
> [<c06e20ea>] rfcomm_dev_ioctl+0x53a/0x690
> [<c06e01be>] rfcomm_sock_ioctl+0x1e/0x50
> [<c06e01c9>] rfcomm_sock_ioctl+0x29/0x50
> [<c0625e16>] sock_ioctl+0xb6/0x1d0
> [<c0625d60>] sock_ioctl+0x0/0x1d0
> [<c0288e8b>] vfs_ioctl+0x2b/0x90
> [<c0288f4c>] do_vfs_ioctl+0x5c/0x2a0
> [<c02891cd>] sys_ioctl+0x3d/0x70
> [<c0203c2a>] syscall_call+0x7/0xb
> =======================
>
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
> --
> To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: 2.6.26-rc1: warnings from sysfs, bluetooth related
2008-05-12 2:05 ` Dave Young
@ 2008-05-15 18:17 ` Pavel Machek
0 siblings, 0 replies; 3+ messages in thread
From: Pavel Machek @ 2008-05-15 18:17 UTC (permalink / raw
To: Dave Young; +Cc: kernel list, gregkh, marcel, linux-bluetooth
Hi!
> > I'm getting these from rfcomm...
>
>
> Are you sure it's a regression?
No, I'm not sure it is an regression. I have not seen it in a while,
and I seen it on -rc1. It does not seem to be too repeatable.
> Dont know if it's same bug as BUG 10341. I just describe the problem
> in bug 10341:
>
> While a rfcomm device is opened more than once, the BUG 10341 can be triggered.
>
> rfcomm dev reference will be held for every rfcomm_tty_open, but release_dev
> will hangup the tty and release the dev number for free use without
> judge the dev->opened.
>
> rfcomm_dev_state_change and rfcomm_tty_hangup could del the rfcomm dev
> as well, the problem is similar as above.
>
> If the create_dev called before the last tty_close, sysfs will
> warning and create will fail.
>
> I have a patch which don't hold the dev reference in rfcomm_tty_open,
> but it need some review and test.
>
> please see:
> http://bugzilla.kernel.org/attachment.cgi?id=15746
>
> Marcel, do you have idea about this? or other solution?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2008-05-15 18:16 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2008-05-11 16:19 2.6.26-rc1: warnings from sysfs, bluetooth related Pavel Machek
2008-05-12 2:05 ` Dave Young
2008-05-15 18:17 ` Pavel Machek
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