Eric Lee / smarc-fsl-linux-kernel

08 Oct, 2007

1 commit

  • 891e6a931   [ROSE]: Fix rose.ko oops on unload ... Browse Code »

    Commit a3d384029aa304f8f3f5355d35f0ae274454f7cd aka
    "[AX.25]: Fix unchecked rose_add_loopback_neigh uses"
    transformed rose_loopback_neigh var into statically allocated one.
    However, on unload it will be kfree's which can't work.

    Steps to reproduce:

    modprobe rose
    rmmod rose

    BUG: unable to handle kernel NULL pointer dereference at virtual address 00000008
    printing eip:
    c014c664
    *pde = 00000000
    Oops: 0000 [#1]
    PREEMPT DEBUG_PAGEALLOC
    Modules linked in: rose ax25 fan ufs loop usbhid rtc snd_intel8x0 snd_ac97_codec ehci_hcd ac97_bus uhci_hcd thermal usbcore button processor evdev sr_mod cdrom
    CPU: 0
    EIP: 0060:[] Not tainted VLI
    EFLAGS: 00210086 (2.6.23-rc9 #3)
    EIP is at kfree+0x48/0xa1
    eax: 00000556 ebx: c1734aa0 ecx: f6a5e000 edx: f7082000
    esi: 00000000 edi: f9a55d20 ebp: 00200287 esp: f6a5ef28
    ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068
    Process rmmod (pid: 1823, ti=f6a5e000 task=f7082000 task.ti=f6a5e000)
    Stack: f9a55d20 f9a5200c 00000000 00000000 00000000 f6a5e000 f9a5200c f9a55a00
    00000000 bf818cf0 f9a51f3f f9a55a00 00000000 c0132c60 65736f72 00000000
    f69f9630 f69f9528 c014244a f6a4e900 00200246 f7082000 c01025e6 00000000
    Call Trace:
    [] rose_rt_free+0x1d/0x49 [rose]
    [] rose_rt_free+0x1d/0x49 [rose]
    [] rose_exit+0x4c/0xd5 [rose]
    [] sys_delete_module+0x15e/0x186
    [] remove_vma+0x40/0x45
    [] sysenter_past_esp+0x8f/0x99
    [] trace_hardirqs_on+0x118/0x13b
    [] sysenter_past_esp+0x5f/0x99
    =======================
    Code: 05 03 1d 80 db 5b c0 8b 03 25 00 40 02 00 3d 00 40 02 00 75 03 8b 5b 0c 8b 73 10 8b 44 24 18 89 44 24 04 9c 5d fa e8 77 df fd ff 56 08 89 f8 e8 84 f4 fd ff e8 bd 32 06 00 3b 5c 86 60 75 0f
    EIP: [] kfree+0x48/0xa1 SS:ESP 0068:f6a5ef28

    Signed-off-by: Alexey Dobriyan
    Signed-off-by: David S. Miller

    Alexey Dobriyan
     

26 Apr, 2007

1 commit

  • badff6d01   [SK_BUFF]: Introduce skb_reset_transport_header(skb) ... Browse Code »

    For the common, open coded 'skb->h.raw = skb->data' operation, so that we can
    later turn skb->h.raw into a offset, reducing the size of struct sk_buff in
    64bit land while possibly keeping it as a pointer on 32bit.

    This one touches just the most simple cases:

    skb->h.raw = skb->data;
    skb->h.raw = {skb_push|[__]skb_pull}()

    The next ones will handle the slightly more "complex" cases.

    Signed-off-by: Arnaldo Carvalho de Melo
    Signed-off-by: David S. Miller

    Arnaldo Carvalho de Melo
     

18 Dec, 2006

1 commit

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