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SubjectRe: [PATCH] net: via-velocity.c fix sleep-with-spinlock bug during MTU change
Francois Romieu a écrit :
> Francois Romieu <romieu@fr.zoreil.com> :
> [...context available from http://lkml.org/lkml/2008/5/31/251 ...]
>
> Régis, I need your help.
>
> Can you give the patchkit below a try and check if the change of mtu
> works correctly ?
>
> http://userweb.kernel.org/~romieu/via-velocity/2.6.26-rc6/
>
> or:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/romieu/netdev-2.6.git velocity
>
>
The mtu change doesn't work :

Jun 16 23:22:34 apollo kernel: ------------[ cut here ]------------
Jun 16 23:22:34 apollo kernel: WARNING: at arch/x86/kernel/pci-dma.c:482
dma_free_coherent+0x3a/0x9c()
Jun 16 23:22:34 apollo kernel: Pid: 1527, comm: ip Tainted: G W
2.6.26-rc6EPIA_SN_VB7001 #3
Jun 16 23:22:34 apollo kernel: [<c0115fe5>] warn_on_slowpath+0x3b/0x5f
Jun 16 23:22:34 apollo kernel: [<c0133940>]
get_page_from_freelist+0x24a/0x36f
Jun 16 23:22:34 apollo kernel: [<c012d86b>] handle_IRQ_event+0x1a/0x3f
Jun 16 23:22:34 apollo kernel: [<c0241193>] velocity_free_rd_ring+0xa5/0xb6
Jun 16 23:22:34 apollo kernel: [<c0144752>] kfree+0x6a/0x72
Jun 16 23:22:34 apollo kernel: [<c0241193>] velocity_free_rd_ring+0xa5/0xb6
Jun 16 23:22:34 apollo kernel: [<c0105816>] dma_free_coherent+0x3a/0x9c
Jun 16 23:22:34 apollo kernel: [<c02411eb>]
velocity_free_dma_rings+0x47/0x4d
Jun 16 23:22:34 apollo kernel: [<c024225b>] velocity_change_mtu+0xf6/0x157
Jun 16 23:22:34 apollo kernel: [<c02856c4>] dev_set_mtu+0x2a/0x4f
Jun 16 23:22:34 apollo kernel: [<c0286642>] dev_ioctl+0x4ab/0x530
Jun 16 23:22:34 apollo kernel: [<c012e4cb>] handle_fasteoi_irq+0x74/0x77
Jun 16 23:22:34 apollo kernel: [<c010479b>] do_IRQ+0x50/0x60
Jun 16 23:22:34 apollo kernel: [<c027d785>] sock_ioctl+0x0/0x177
Jun 16 23:22:34 apollo kernel: [<c01032eb>] common_interrupt+0x23/0x28
Jun 16 23:22:34 apollo kernel: [<c027d785>] sock_ioctl+0x0/0x177
Jun 16 23:22:34 apollo kernel: [<c0150b4a>] vfs_ioctl+0x16/0x48
Jun 16 23:22:34 apollo kernel: [<c0150d5a>] do_vfs_ioctl+0x1de/0x1f1
Jun 16 23:22:34 apollo kernel: [<c0150dae>] sys_ioctl+0x41/0x5b
Jun 16 23:22:34 apollo kernel: [<c010291d>] sysenter_past_esp+0x6a/0x91
Jun 16 23:22:34 apollo kernel: =======================
Jun 16 23:22:34 apollo kernel: ---[ end trace 17457a054a24b83c ]---


--
Régis
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