• G
    [DCCP]: Allocation in atomic context · 39dad26c
    Gerrit Renker 提交于
    This fixes the following bug reported in syslog:
    
    [ 4039.051658] BUG: sleeping function called from invalid context at /usr/src/davem-2.6/mm/slab.c:3032
    [ 4039.051668] in_atomic():1, irqs_disabled():0
    [ 4039.051670] INFO: lockdep is turned off.
    [ 4039.051674]  [<c0104c0f>] show_trace_log_lvl+0x1a/0x30
    [ 4039.051687]  [<c0104d4d>] show_trace+0x12/0x14
    [ 4039.051691]  [<c0104d65>] dump_stack+0x16/0x18
    [ 4039.051695]  [<c011371e>] __might_sleep+0xaf/0xbe
    [ 4039.051700]  [<c0157b66>] __kmalloc+0xb1/0xd0
    [ 4039.051706]  [<f090416f>] ccid2_hc_tx_alloc_seq+0x35/0xc3 [dccp_ccid2]
    [ 4039.051717]  [<f09048d6>] ccid2_hc_tx_packet_sent+0x27f/0x2d9 [dccp_ccid2]
    [ 4039.051723]  [<f085486b>] dccp_write_xmit+0x1eb/0x338 [dccp]
    [ 4039.051741]  [<f085603d>] dccp_sendmsg+0x113/0x18f [dccp]
    [ 4039.051750]  [<c03907fc>] inet_sendmsg+0x2e/0x4c
    [ 4039.051758]  [<c033a47d>] sock_aio_write+0xd5/0x107
    [ 4039.051766]  [<c015abc1>] do_sync_write+0xcd/0x11c
    [ 4039.051772]  [<c015b296>] vfs_write+0x118/0x11f
    [ 4039.051840]  [<c015b932>] sys_write+0x3d/0x64
    [ 4039.051845]  [<c0103e7c>] syscall_call+0x7/0xb
    [ 4039.051848]  =======================
    
    The problem was that GFP_KERNEL was used; fixed by using gfp_any().
    Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
    Signed-off-by: NArnaldo Carvalho de Melo <acme@ghostprotocols.net>
    Signed-off-by: NDavid S. Miller <davem@davemloft.net>
    39dad26c
ccid2.c 21.6 KB