Messages in this thread | | | Date | Wed, 3 Sep 2008 12:02:03 -0700 (PDT) | From | Chris Rankin <> | Subject | Linux 2.6.26.3: parallel port trouble |
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Everyone,
I'm seeing some strange output in the dmesg log with a 2.6.26.3 UP kernel when it prints to an old HP OfficeJet parallel port printer:
ppdev0: registered pardevice sysctl table check failed: /dev/parport/parport0/devices/ppdev0/timeslice Sysctl already exists Pid: 3268, comm: hpijs Not tainted 2.6.26.3 #1 [<c0129dd8>] set_fail+0x30/0x39 [<c012a1f2>] sysctl_check_table+0x411/0x44f [<c012a209>] sysctl_check_table+0x428/0x44f [<c012a209>] sysctl_check_table+0x428/0x44f [<c012a209>] sysctl_check_table+0x428/0x44f [<c012a209>] sysctl_check_table+0x428/0x44f [<c012a209>] sysctl_check_table+0x428/0x44f [<c011c802>] __register_sysctl_paths+0xa0/0x102 [<c011c87e>] register_sysctl_paths+0x1a/0x1c [<d9955458>] parport_device_proc_register+0xa2/0xbc [parport] [<d99537e1>] parport_register_device+0x1f8/0x220 [parport] [<d993f2f7>] pp_ioctl+0x11e/0x76e [ppdev] [<d993f947>] pp_irq+0x0/0x89 [ppdev] [<c0167e85>] vfs_ioctl+0x49/0x5f [<c01680d3>] do_vfs_ioctl+0x238/0x24a [<c0168111>] sys_ioctl+0x2c/0x43 [<c0102c36>] syscall_call+0x7/0xb ======================= ppdev0: registered pardevice ... ppdev0: unregistered pardevice ppdev0: released pardevice because user-space forgot ppdev0: unregistered pardevice ppdev0: registered pardevice sysctl table check failed: /dev/parport/parport0/devices/ppdev0/timeslice Sysctl already exists Pid: 6643, comm: hpijs Not tainted 2.6.26.3 #1 [<c0129dd8>] set_fail+0x30/0x39 [<c012a1f2>] sysctl_check_table+0x411/0x44f [<c012a209>] sysctl_check_table+0x428/0x44f [<c012a209>] sysctl_check_table+0x428/0x44f [<c012a209>] sysctl_check_table+0x428/0x44f [<c012a209>] sysctl_check_table+0x428/0x44f [<c012a209>] sysctl_check_table+0x428/0x44f [<c011c802>] __register_sysctl_paths+0xa0/0x102 [<c011c87e>] register_sysctl_paths+0x1a/0x1c [<d9955458>] parport_device_proc_register+0xa2/0xbc [parport] [<d99537e1>] parport_register_device+0x1f8/0x220 [parport] [<d993f2f7>] pp_ioctl+0x11e/0x76e [ppdev] [<d993f947>] pp_irq+0x0/0x89 [ppdev] [<c0167e85>] vfs_ioctl+0x49/0x5f [<c01680d3>] do_vfs_ioctl+0x238/0x24a [<c0168111>] sys_ioctl+0x2c/0x43 [<c0102c36>] syscall_call+0x7/0xb ======================= ppdev0: registered pardevice ppdev0: unregistered pardevice ppdev0: unregistered pardevice
The printer is still printing, so I'm guessing that these warnings aren't too serious - yet. But they worry me.
Cheers, Chris
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