mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 08:36:47 +07:00
f7f2287426
This backtrace was recently reported on a 3.9 kernel: Actual results: from syslog /var/log/messsages: kernel: [17539.340285] ------------[ cut here ]------------ kernel: [17539.341012] WARNING: at lib/dma-debug.c:937 check_unmap+0x493/0x960() kernel: [17539.341012] Hardware name: MS-7125 kernel: [17539.341012] forcedeth 0000:00:0a.0: DMA-API: device driver failed to check map error[device address=0x0000000013c88000] [size=544 bytes] [mapped as page] kernel: [17539.341012] Modules linked in: fuse ebtable_nat ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast ip6table_nat nf_nat_ipv6 ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat nf_nat_ipv4 nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack bnep bluetooth rfkill ebtable_filter ebtables ip6table_filter ip6_tables snd_hda_codec_hdmi snd_cmipci snd_mpu401_uart snd_hda_intel snd_intel8x0 snd_opl3_lib snd_ac97_codec gameport snd_hda_codec snd_rawmidi ac97_bus snd_hwdep snd_seq snd_seq_device snd_pcm snd_page_alloc snd_timer snd k8temp soundcore serio_raw i2c_nforce2 forcedeth ata_generic pata_acpi nouveau video mxm_wmi wmi i2c_algo_bit drm_kms_helper ttm drm i2c_core sata_sil pata_amd sata_nv uinput kernel: [17539.341012] Pid: 17340, comm: sshd Not tainted 3.9.0-0.rc4.git0.1.fc19.i686.PAE #1 kernel: [17539.341012] Call Trace: kernel: [17539.341012] [<c045573c>] warn_slowpath_common+0x6c/0xa0 kernel: [17539.341012] [<c0701953>] ? check_unmap+0x493/0x960 kernel: [17539.341012] [<c0701953>] ? check_unmap+0x493/0x960 kernel: [17539.341012] [<c04557a3>] warn_slowpath_fmt+0x33/0x40 kernel: [17539.341012] [<c0701953>] check_unmap+0x493/0x960 kernel: [17539.341012] [<c049238f>] ? sched_clock_cpu+0xdf/0x150 kernel: [17539.341012] [<c0701e87>] debug_dma_unmap_page+0x67/0x70 kernel: [17539.341012] [<f7eae8f2>] nv_unmap_txskb.isra.32+0x92/0x100 Its pretty plainly the result of an skb fragment getting unmapped without having its initial mapping operation checked for errors. This patch corrects that. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: "David S. Miller" <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|---|---|---|
| .. | ||
| appletalk | ||
| arcnet | ||
| bonding | ||
| caif | ||
| can | ||
| cris | ||
| dsa | ||
| ethernet | ||
| fddi | ||
| hamradio | ||
| hippi | ||
| hyperv | ||
| ieee802154 | ||
| irda | ||
| phy | ||
| plip | ||
| ppp | ||
| slip | ||
| team | ||
| usb | ||
| vmxnet3 | ||
| wan | ||
| wimax | ||
| wireless | ||
| xen-netback | ||
| dummy.c | ||
| eql.c | ||
| ifb.c | ||
| Kconfig | ||
| LICENSE.SRC | ||
| loopback.c | ||
| macvlan.c | ||
| macvtap.c | ||
| Makefile | ||
| mdio.c | ||
| mii.c | ||
| netconsole.c | ||
| ntb_netdev.c | ||
| rionet.c | ||
| sb1000.c | ||
| Space.c | ||
| sungem_phy.c | ||
| tun.c | ||
| veth.c | ||
| virtio_net.c | ||
| vxlan.c | ||
| xen-netfront.c | ||