Eric Lee / smarc-fsl-linux-kernel

09 May, 2007

1 commit

  • ca509f69d   Protect tty drivers list with tty_mutex ... Browse Code »

    Additions and removal from tty_drivers list were just done as well as
    iterating on it for /proc/tty/drivers generation.

    testing: modprobe/rmmod loop of simple module which does nothing but
    tty_register_driver() vs cat /proc/tty/drivers loop

    BUG: unable to handle kernel paging request at virtual address 6b6b6b6b
    printing eip:
    c01cefa7
    *pde = 00000000
    Oops: 0000 [#1]
    PREEMPT
    last sysfs file: devices/pci0000:00/0000:00:1d.7/usb5/5-0:1.0/bInterfaceProtocol
    Modules linked in: ohci_hcd af_packet e1000 ehci_hcd uhci_hcd usbcore xfs
    CPU: 0
    EIP: 0060:[] Not tainted VLI
    EFLAGS: 00010297 (2.6.21-rc4-mm1 #4)
    EIP is at vsnprintf+0x3a4/0x5fc
    eax: 6b6b6b6b ebx: f6cb50f2 ecx: 6b6b6b6b edx: fffffffe
    esi: c0354700 edi: f6cb6000 ebp: 6b6b6b6b esp: f31f5e68
    ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068
    Process cat (pid: 31864, ti=f31f4000 task=c1998030 task.ti=f31f4000)
    Stack: 00000000 c0103f20 c013003a c0103f20 00000000 f6cb50da 0000000a 00000f0e
    f6cb50f2 00000010 00000014 ffffffff ffffffff 00000007 c0354753 f6cb50f2
    f73e39dc f73e39dc 00000001 c0175416 f31f5ed8 f31f5ed4 0ee00000 f32090bc
    Call Trace:
    [] restore_nocheck+0x12/0x15
    [] mark_held_locks+0x6d/0x86
    [] restore_nocheck+0x12/0x15
    [] seq_printf+0x2e/0x52
    [] show_tty_range+0x35/0x1f3
    [] seq_printf+0x2e/0x52
    [] show_tty_driver+0x8a/0x1d9
    [] seq_read+0x70/0x2ba
    [] seq_read+0x0/0x2ba
    [] proc_reg_read+0x63/0x9f
    [] vfs_read+0x7d/0xb5
    [] proc_reg_read+0x0/0x9f
    [] sys_read+0x41/0x6a
    [] sysenter_past_esp+0x5f/0x99
    =======================
    Code: 00 8b 4d 04 e9 44 ff ff ff 8d 4d 04 89 4c 24 50 8b 6d 00 81 fd ff 0f 00 00 b8 a4 c1 35 c0 0f 46 e8 8b 54 24 2c 89 e9 89 c8 eb 06 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 89 c6 8b 44 24 28 89
    EIP: [] vsnprintf+0x3a4/0x5fc SS:ESP 0068:f31f5e68

    Signed-off-by: Alexey Dobriyan
    Cc: Alan Cox
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     

13 Feb, 2007

1 commit

  • 00977a59b   [PATCH] mark struct file_operations const 6 ... Browse Code »

    Many struct file_operations in the kernel can be "const". Marking them const
    moves these to the .rodata section, which avoids false sharing with potential
    dirty data. In addition it'll catch accidental writes at compile time to
    these shared resources.

    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arjan van de Ven
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds