Messages in this thread | | | Date | Tue, 16 Jun 2009 17:34:17 +0200 | From | Joerg Roedel <> | Subject | dma-debug warning with ixgbe |
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Hi,
today I got this dma-debug warning with the ixgbe driver with a kernel near 2.6.30-rc8.
------------[ cut here ]------------ WARNING: at /data/repos/linux-2.6-iommu/lib/dma-debug.c:806 check_unmap+0x214/0x5c3() Hardware name: Toonie ixgbe 0000:02:00.0: DMA-API: device driver frees DMA memory with different size [device address=0x0000000000045c12] [map size=258 bytes] [unmap size=256 bytes] Modules linked in: loop i2c_piix4 tpm_infineon rtc_cmos tpm tpm_bios rtc_core rtc_lib button ata_generic pata_acpi usbhid pata_atiixp ixgbe hid dca bnx2 Pid: 4391, comm: ifconfig Not tainted 2.6.30-rc81 #1 Call Trace: [<ffffffff8039125a>] ? check_unmap+0x214/0x5c3 [<ffffffff80238d72>] warn_slowpath_common+0x77/0xa4 [<ffffffff80238e14>] warn_slowpath_fmt+0x64/0x66 [<ffffffff80391134>] ? check_unmap+0xee/0x5c3 [<ffffffff8058970b>] ? _spin_lock_irqsave+0x3f/0x4b [<ffffffff80391134>] ? check_unmap+0xee/0x5c3 [<ffffffff8039125a>] check_unmap+0x214/0x5c3 [<ffffffff80391813>] debug_dma_unmap_page+0x51/0x53 [<ffffffffa002e29c>] ixgbe_clean_rx_ring+0xb9/0x1e4 [ixgbe] [<ffffffffa002f2f6>] ixgbe_down+0x2f8/0x34e [ixgbe] [<ffffffffa00307a8>] ixgbe_reinit_locked+0x59/0x70 [ixgbe] [<ffffffffa0030837>] ixgbe_change_mtu+0x78/0x82 [ixgbe] [<ffffffff804f56b5>] dev_set_mtu+0x3a/0x69 [<ffffffff804f688c>] dev_ifsioc+0xcf/0x2cc [<ffffffff804f7018>] dev_ioctl+0x58f/0x647 [<ffffffff80351978>] ? avc_has_perm+0x4e/0x60 [<ffffffff804e4e7f>] sock_ioctl+0x21f/0x231 [<ffffffff802cb478>] vfs_ioctl+0x2a/0x78 [<ffffffff802cb934>] do_vfs_ioctl+0x46e/0x4aa [<ffffffff80250521>] ? up_read+0x26/0x2b [<ffffffff802cb9c5>] sys_ioctl+0x55/0x77 [<ffffffff8020afab>] system_call_fastpath+0x16/0x1b ---[ end trace f560e4a00a9d5d32 ]--- Mapped at: [<ffffffff80391bca>] debug_dma_map_page+0x7c/0x11f [<ffffffffa002b3ba>] ixgbe_alloc_rx_buffers+0x247/0x316 [ixgbe] [<ffffffffa002bc5a>] ixgbe_configure+0x7d1/0x7e3 [ixgbe] [<ffffffffa002ffb9>] ixgbe_open+0xed/0x63b [ixgbe] [<ffffffff804f5d48>] dev_open+0x7c/0xc2
Joerg
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