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From: Ingo M. <mi...@el...> - 2009-03-18 14:22:01
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There's a similar-looking warning triggering for the forcedeth driver as well on another test-system (see the details below). Does anyone know whether there's a fix for this too, or is it a new warning? Ingo ----- Forwarded message from Ingo Molnar <mi...@el...> ----- Date: Wed, 18 Mar 2009 12:20:26 +0100 From: Ingo Molnar <mi...@el...> To: Joerg Roedel <joe...@am...> Subject: forcedeth 0000:00:0a.0: DMA-API: device driver frees DMA memory with wrong function [device address=0x0000000035992232] [size=42 bytes] [mapped as single] [unmapped as page] Cc: Ingo Molnar <mi...@re...>, io...@li..., lin...@vg... -tip testing found this DMA-debug assert: [ 19.648023] eth0: no link during initialization. [ 21.952553] eth0: link up. [ 22.684073] ------------[ cut here ]------------ [ 22.688023] WARNING: at lib/dma-debug.c:562 check_unmap+0x30e/0x4b4() [ 22.688023] Hardware name: System Product Name [ 22.688023] forcedeth 0000:00:0a.0: DMA-API: device driver frees DMA memory with wrong function [device address=0x0000000035992232] [size=42 bytes] [mapped as single] [unmapped as page] [ 22.688023] Modules linked in: [ 22.688023] Pid: 1523, comm: arping Not tainted 2.6.29-rc8-tip #20999 [ 22.688023] Call Trace: [ 22.688023] [<c0140eae>] warn_slowpath+0x76/0xad [ 22.688023] [<c0293a0b>] ? add_dma_entry+0x4b/0x51 [ 22.688023] [<c015eec5>] ? mark_lock+0x1c/0x16f [ 22.688023] [<c015f1a4>] ? __lock_acquire+0x18c/0x296 [ 22.688023] [<c03473cc>] ? nv_start_xmit_optimized+0x3bd/0x3eb [ 22.688023] [<c015eec5>] ? mark_lock+0x1c/0x16f [ 22.688023] [<c015f1a4>] ? __lock_acquire+0x18c/0x296 [ 22.688023] [<c0293572>] check_unmap+0x30e/0x4b4 [ 22.688023] [<c055f7c3>] ? _spin_lock+0x27/0x2f [ 22.688023] [<c0145ba1>] ? _local_bh_enable_ip+0xa1/0xa7 [ 22.688023] [<c049e0f8>] ? dev_queue_xmit+0x325/0x359 [ 22.688023] [<c0188922>] ? trace_hardirqs_on+0x21/0x23 [ 22.688023] [<c0145ba1>] ? _local_bh_enable_ip+0xa1/0xa7 [ 22.688023] [<c0145bc6>] ? local_bh_enable+0x10/0x12 [ 22.688023] [<c050225c>] ? packet_sendmsg+0x1b7/0x20a [ 22.688023] [<c02939b8>] debug_dma_unmap_page+0x59/0x61 [ 22.688023] [<c034421f>] pci_unmap_page+0x5b/0x66 [ 22.688023] [<c03446fd>] nv_tx_done_optimized+0x46/0x1c5 [ 22.688023] [<c0345922>] nv_nic_irq_optimized+0xa7/0x233 [ 22.688023] [<c017706e>] handle_IRQ_event+0x85/0xdf [ 22.688023] [<c01785df>] handle_fasteoi_irq+0x79/0xb9 [ 22.688023] [<c0119973>] handle_irq+0x1f/0x24 [ 22.688023] [<c0119332>] do_IRQ+0x45/0x88 [ 22.688023] [<c0118455>] common_interrupt+0x35/0x40 [ 22.688023] [<c0144515>] ? do_setitimer+0x160/0x2d9 [ 22.688023] [<c055f69b>] ? _spin_unlock_irq+0x29/0x2b [ 22.688023] [<c0144515>] do_setitimer+0x160/0x2d9 [ 22.688023] [<c04926fa>] ? sys_socketcall+0xed/0x188 [ 22.688023] [<c014473b>] alarm_setitimer+0x39/0x58 [ 22.688023] [<c0149776>] sys_alarm+0x10/0x12 [ 22.688023] [<c0117d47>] sysenter_do_call+0x12/0x32 [ 22.688023] ---[ end trace bf7fa25698012db6 ]--- [ 22.688023] Mapped at: [ 22.688023] [<c0293cc1>] debug_dma_map_page+0x6c/0x128 [ 22.688023] [<c0345bd0>] pci_map_single+0xb5/0xc1 [ 22.688023] [<c0347147>] nv_start_xmit_optimized+0x138/0x3eb [ 22.688023] [<c049dc7c>] dev_hard_start_xmit+0x123/0x18f [ 22.688023] [<c04acbb9>] __qdisc_run+0xd0/0x1b3 [ 23.700081] arping used greatest stack depth: 5988 bytes left [ 24.545512] Adding 3911816k swap on /dev/sda2. Priority:-1 extents:1 across:3911816k Config and full bootlog attached. Ingo |