理解dmesg警告

Question

有人能在下面的dmesg日志中了解这些警告的含义吗？它们是否意味着atl1c模块无法完全加载，或者仅仅是一个警告？

任何有助于更好地理解日志的信息将不胜感激。

谢谢。

[Wed Apr  4 19:51:54 2018] ------------[ cut here ]------------
[Wed Apr  4 19:51:54 2018] WARNING: at kernel/irq/manage.c:1244 __free_irq+0xa7/0x200()
[Wed Apr  4 19:51:54 2018] Trying to free already-free IRQ 18
[Wed Apr  4 19:51:54 2018] Modules linked in: button ax88179_178a usbnet tg3 r8169 cnic bnx2 vmxnet3 pcnet32 e1000 sfc netxen_nic qlge qlcnic qla3xxx pch_gbe ptp_pch sky2 skge jme ipg uio alx atl1c atl1e atl1 libphy mii exfat(O) btrfs zlib_deflate hfsplus md4 hmac bnx2x(O) libcrc32c mdio mlx5_core(O) mlx4_en(O) mlx4_core(O) mlx_compat(O) compat(O) qede(O) qed(O) atlantic(O) r8168(O) tn40xx(O) i40e(O) ixgbe(O) be2net(O) igb(O) i2c_algo_bit e1000e(O) dca fuse vfat fat glue_helper lrw gf128mul ablk_helper sha512_generic arc4 cryptd ecryptfs sha256_generic sha1_generic ecb aes_x86_64 authenc des_generic ansi_cprng cts md5 cbc cpufreq_conservative cpufreq_powersave cpufreq_performance cpufreq_ondemand acpi_cpufreq mperf processor thermal_sys cpufreq_stats freq_table dm_snapshot
[Wed Apr  4 19:51:54 2018]  crc_itu_t crc_ccitt quota_v2 quota_tree psnap p8022 llc sit tunnel4 ip_tunnel ipv6 zram(C) sg etxhci_hcd mpt3sas mpt2sas(O) megaraid_sas ata_piix mptctl mptsas mptspi mptscsih mptbase scsi_transport_spi megaraid megaraid_mbox megaraid_mm vmw_pvscsi BusLogic usb_storage xhci_hcd uhci_hcd ohci_hcd ehci_pci ehci_hcd usbcore usb_common el000(O)
[Wed Apr  4 19:51:54 2018] CPU: 0 PID: 8840 Comm: ifconfig Tainted: P        WC O 3.10.102 #15266
[Wed Apr  4 19:51:54 2018] Hardware name: System manufacturer System Product Name/M4A78LT-M-LE, BIOS 0704    06/11/2010
[Wed Apr  4 19:51:54 2018]  ffffffff814a9ec3 ffffffff81032ee6 0000000000000000 ffff8800c74b3cf8
[Wed Apr  4 19:51:54 2018]  ffff8800caa4da80 0000000000000012 ffff8800caa4db0c ffffffff81032f47
[Wed Apr  4 19:51:54 2018]  ffffffff816f5e60 ffff880000000020 ffff8800c74b3d08 ffff8800c74b3cc8
[Wed Apr  4 19:51:54 2018] Call Trace:
[Wed Apr  4 19:51:54 2018]  [<ffffffff814a9ec3>] ? dump_stack+0xc/0x15
[Wed Apr  4 19:51:54 2018]  [<ffffffff81032ee6>] ? warn_slowpath_common+0x56/0x70
[Wed Apr  4 19:51:54 2018]  [<ffffffff81032f47>] ? warn_slowpath_fmt+0x47/0x50
[Wed Apr  4 19:51:54 2018]  [<ffffffffa0aacc25>] ? atl1c_alloc_rx_buffer+0x385/0x410 [atl1c]
[Wed Apr  4 19:51:54 2018]  [<ffffffff8109c837>] ? __free_irq+0xa7/0x200
[Wed Apr  4 19:51:54 2018]  [<ffffffff8109ca0f>] ? free_irq+0x2f/0xa0
[Wed Apr  4 19:51:54 2018]  [<ffffffffa0aadddc>] ? atl1c_up+0x9c/0x190 [atl1c]
[Wed Apr  4 19:51:54 2018]  [<ffffffffa0aab396>] ? atl1c_free_irq+0x16/0x40 [atl1c]
[Wed Apr  4 19:51:54 2018]  [<ffffffffa0aae458>] ? atl1c_open+0x288/0x2e0 [atl1c]
[Wed Apr  4 19:51:54 2018]  [<ffffffff813ef92e>] ? __dev_open+0x7e/0xe0
[Wed Apr  4 19:51:54 2018]  [<ffffffff813efb81>] ? __dev_change_flags+0x91/0x140
[Wed Apr  4 19:51:54 2018]  [<ffffffff813efcb2>] ? dev_change_flags+0x12/0x50
[Wed Apr  4 19:51:54 2018]  [<ffffffff8144a12c>] ? devinet_ioctl+0x5fc/0x6c0
[Wed Apr  4 19:51:54 2018]  [<ffffffff810296e8>] ? __do_page_fault+0x1b8/0x480
[Wed Apr  4 19:51:54 2018]  [<ffffffff813d599b>] ? sock_do_ioctl+0x1b/0x50
[Wed Apr  4 19:51:54 2018]  [<ffffffff813d5dc8>] ? sock_ioctl+0x1d8/0x2a0
[Wed Apr  4 19:51:54 2018]  [<ffffffff8110d0fe>] ? do_vfs_ioctl+0x20e/0x880
[Wed Apr  4 19:51:54 2018]  [<ffffffff81238f86>] ? apparmor_cred_prepare+0x26/0x40
[Wed Apr  4 19:51:54 2018]  [<ffffffff810f3417>] ? SyS_faccessat+0x197/0x2c0
[Wed Apr  4 19:51:54 2018]  [<ffffffff8110d7f0>] ? SyS_ioctl+0x80/0xa0
[Wed Apr  4 19:51:54 2018]  [<ffffffff814afeb2>] ? system_call_fastpath+0x16/0x1b
[Wed Apr  4 19:51:54 2018] ---[ end trace 14fdad943159d686 ]---
[Wed Apr  4 19:51:54 2018] ------------[ cut here ]------------
[Wed Apr  4 19:51:54 2018] WARNING: at kernel/irq/manage.c:1244 __free_irq+0xa7/0x200()
[Wed Apr  4 19:51:54 2018] Trying to free already-free IRQ 18
[Wed Apr  4 19:51:54 2018] Modules linked in: button ax88179_178a usbnet tg3 r8169 cnic bnx2 vmxnet3 pcnet32 e1000 sfc netxen_nic qlge qlcnic qla3xxx pch_gbe ptp_pch sky2 skge jme ipg uio alx atl1c atl1e atl1 libphy mii exfat(O) btrfs zlib_deflate hfsplus md4 hmac bnx2x(O) libcrc32c mdio mlx5_core(O) mlx4_en(O) mlx4_core(O) mlx_compat(O) compat(O) qede(O) qed(O) atlantic(O) r8168(O) tn40xx(O) i40e(O) ixgbe(O) be2net(O) igb(O) i2c_algo_bit e1000e(O) dca fuse vfat fat glue_helper lrw gf128mul ablk_helper sha512_generic arc4 cryptd ecryptfs sha256_generic sha1_generic ecb aes_x86_64 authenc des_generic ansi_cprng cts md5 cbc cpufreq_conservative cpufreq_powersave cpufreq_performance cpufreq_ondemand acpi_cpufreq mperf processor thermal_sys cpufreq_stats freq_table dm_snapshot
[Wed Apr  4 19:51:54 2018]  crc_itu_t crc_ccitt quota_v2 quota_tree psnap p8022 llc sit tunnel4 ip_tunnel ipv6 zram(C) sg etxhci_hcd mpt3sas mpt2sas(O) megaraid_sas ata_piix mptctl mptsas mptspi mptscsih mptbase scsi_transport_spi megaraid megaraid_mbox megaraid_mm vmw_pvscsi BusLogic usb_storage xhci_hcd uhci_hcd ohci_hcd ehci_pci ehci_hcd usbcore usb_common el000(O)
[Wed Apr  4 19:51:54 2018] CPU: 0 PID: 8840 Comm: ifconfig Tainted: P        WC O 3.10.102 #15266
[Wed Apr  4 19:51:54 2018] Hardware name: System manufacturer System Product Name/M4A78LT-M-LE, BIOS 0704    06/11/2010
[Wed Apr  4 19:51:54 2018]  ffffffff814a9ec3 ffffffff81032ee6 0000000000000000 ffff8800c74b3cf8
[Wed Apr  4 19:51:54 2018]  ffff8800caa4da80 0000000000000012 ffff8800caa4db0c ffffffff81032f47
[Wed Apr  4 19:51:54 2018]  ffffffff816f5e60 ffff880000000020 ffff8800c74b3d08 ffff8800c74b3cc8
[Wed Apr  4 19:51:54 2018] Call Trace:
[Wed Apr  4 19:51:54 2018]  [<ffffffff814a9ec3>] ? dump_stack+0xc/0x15
[Wed Apr  4 19:51:54 2018]  [<ffffffff81032ee6>] ? warn_slowpath_common+0x56/0x70
[Wed Apr  4 19:51:54 2018]  [<ffffffff81032f47>] ? warn_slowpath_fmt+0x47/0x50
[Wed Apr  4 19:51:54 2018]  [<ffffffffa0aacc25>] ? atl1c_alloc_rx_buffer+0x385/0x410 [atl1c]
[Wed Apr  4 19:51:54 2018]  [<ffffffff8109c837>] ? __free_irq+0xa7/0x200
[Wed Apr  4 19:51:54 2018]  [<ffffffff8109ca0f>] ? free_irq+0x2f/0xa0
[Wed Apr  4 19:51:54 2018]  [<ffffffffa0aadddc>] ? atl1c_up+0x9c/0x190 [atl1c]
[Wed Apr  4 19:51:54 2018]  [<ffffffffa0aab396>] ? atl1c_free_irq+0x16/0x40 [atl1c]
[Wed Apr  4 19:51:54 2018]  [<ffffffffa0aae458>] ? atl1c_open+0x288/0x2e0 [atl1c]
[Wed Apr  4 19:51:54 2018]  [<ffffffff813ef92e>] ? __dev_open+0x7e/0xe0
[Wed Apr  4 19:51:54 2018]  [<ffffffff813efb81>] ? __dev_change_flags+0x91/0x140
[Wed Apr  4 19:51:54 2018]  [<ffffffff813efcb2>] ? dev_change_flags+0x12/0x50
[Wed Apr  4 19:51:54 2018]  [<ffffffff8144a12c>] ? devinet_ioctl+0x5fc/0x6c0
[Wed Apr  4 19:51:54 2018]  [<ffffffff813d599b>] ? sock_do_ioctl+0x1b/0x50
[Wed Apr  4 19:51:54 2018]  [<ffffffff813d5dc8>] ? sock_ioctl+0x1d8/0x2a0
[Wed Apr  4 19:51:54 2018]  [<ffffffff810d57f1>] ? vma_rb_erase+0x121/0x260
[Wed Apr  4 19:51:54 2018]  [<ffffffff8110d0fe>] ? do_vfs_ioctl+0x20e/0x880
[Wed Apr  4 19:51:54 2018]  [<ffffffff810d53ed>] ? remove_vma+0x4d/0x60
[Wed Apr  4 19:51:54 2018]  [<ffffffff810d7399>] ? do_munmap+0x359/0x4d0
[Wed Apr  4 19:51:54 2018]  [<ffffffff8110d7f0>] ? SyS_ioctl+0x80/0xa0
[Wed Apr  4 19:51:54 2018]  [<ffffffff814afeb2>] ? system_call_fastpath+0x16/0x1b
[Wed Apr  4 19:51:54 2018] ---[ end trace 14fdad943159d687 ]---
[Wed Apr  4 19:51:54 2018] ip_tables: (C) 2000-2006 Netfilter Core Team
[Wed Apr  4 19:51:54 2018] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[Wed Apr  4 19:51:54 2018] ip6_tables: (C) 2000-2006 Netfilter Core Team
[Wed Apr  4 19:51:55 2018] ------------[ cut here ]------------
[Wed Apr  4 19:51:55 2018] WARNING: at kernel/irq/manage.c:1244 __free_irq+0xa7/0x200()
[Wed Apr  4 19:51:55 2018] Trying to free already-free IRQ 18
[Wed Apr  4 19:51:55 2018] Modules linked in: nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_recent xt_iprange xt_limit xt_state xt_tcpudp xt_multiport xt_LOG nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack iptable_filter ip_tables x_tables button ax88179_178a usbnet tg3 r8169 cnic bnx2 vmxnet3 pcnet32 e1000 sfc netxen_nic qlge qlcnic qla3xxx pch_gbe ptp_pch sky2 skge jme ipg uio alx atl1c atl1e atl1 libphy mii exfat(O) btrfs zlib_deflate hfsplus md4 hmac bnx2x(O) libcrc32c mdio mlx5_core(O) mlx4_en(O) mlx4_core(O) mlx_compat(O) compat(O) qede(O) qed(O) atlantic(O) r8168(O) tn40xx(O) i40e(O) ixgbe(O) be2net(O) igb(O) i2c_algo_bit e1000e(O) dca fuse vfat fat glue_helper lrw gf128mul ablk_helper sha512_generic arc4 cryptd ecryptfs sha256_generic sha1_generic ecb
[Wed Apr  4 19:51:55 2018]  aes_x86_64 authenc des_generic ansi_cprng cts md5 cbc cpufreq_conservative cpufreq_powersave cpufreq_performance cpufreq_ondemand acpi_cpufreq mperf processor thermal_sys cpufreq_stats freq_table dm_snapshot crc_itu_t crc_ccitt quota_v2 quota_tree psnap p8022 llc sit tunnel4 ip_tunnel ipv6 zram(C) sg etxhci_hcd mpt3sas mpt2sas(O) megaraid_sas ata_piix mptctl mptsas mptspi mptscsih mptbase scsi_transport_spi megaraid megaraid_mbox megaraid_mm vmw_pvscsi BusLogic usb_storage xhci_hcd uhci_hcd ohci_hcd ehci_pci ehci_hcd usbcore usb_common el000(O)
[Wed Apr  4 19:51:55 2018] CPU: 1 PID: 10035 Comm: ifconfig Tainted: P        WC O 3.10.102 #15266
[Wed Apr  4 19:51:55 2018] Hardware name: System manufacturer System Product Name/M4A78LT-M-LE, BIOS 0704    06/11/2010
[Wed Apr  4 19:51:55 2018]  ffffffff814a9ec3 ffffffff81032ee6 0000000000000000 ffff8800c97dbcf8
[Wed Apr  4 19:51:55 2018]  ffff8800caa4da80 0000000000000012 ffff8800caa4db0c ffffffff81032f47
[Wed Apr  4 19:51:55 2018]  ffffffff816f5e60 ffff880000000020 ffff8800c97dbd08 ffff8800c97dbcc8
[Wed Apr  4 19:51:55 2018] Call Trace:
[Wed Apr  4 19:51:55 2018]  [<ffffffff814a9ec3>] ? dump_stack+0xc/0x15
[Wed Apr  4 19:51:55 2018]  [<ffffffff81032ee6>] ? warn_slowpath_common+0x56/0x70
[Wed Apr  4 19:51:55 2018]  [<ffffffff81032f47>] ? warn_slowpath_fmt+0x47/0x50
[Wed Apr  4 19:51:55 2018]  [<ffffffffa0aacc25>] ? atl1c_alloc_rx_buffer+0x385/0x410 [atl1c]
[Wed Apr  4 19:51:55 2018]  [<ffffffff8109c837>] ? __free_irq+0xa7/0x200
[Wed Apr  4 19:51:55 2018]  [<ffffffff8109ca0f>] ? free_irq+0x2f/0xa0
[Wed Apr  4 19:51:55 2018]  [<ffffffffa0aadddc>] ? atl1c_up+0x9c/0x190 [atl1c]
[Wed Apr  4 19:51:55 2018]  [<ffffffffa0aab396>] ? atl1c_free_irq+0x16/0x40 [atl1c]
[Wed Apr  4 19:51:55 2018]  [<ffffffffa0aae458>] ? atl1c_open+0x288/0x2e0 [atl1c]
[Wed Apr  4 19:51:55 2018]  [<ffffffff813ef92e>] ? __dev_open+0x7e/0xe0
[Wed Apr  4 19:51:55 2018]  [<ffffffff813efb81>] ? __dev_change_flags+0x91/0x140
[Wed Apr  4 19:51:55 2018]  [<ffffffff813efcb2>] ? dev_change_flags+0x12/0x50
[Wed Apr  4 19:51:55 2018]  [<ffffffff8144a12c>] ? devinet_ioctl+0x5fc/0x6c0
[Wed Apr  4 19:51:55 2018]  [<ffffffff810296e8>] ? __do_page_fault+0x1b8/0x480
[Wed Apr  4 19:51:55 2018]  [<ffffffff813d599b>] ? sock_do_ioctl+0x1b/0x50
[Wed Apr  4 19:51:55 2018]  [<ffffffff813d5dc8>] ? sock_ioctl+0x1d8/0x2a0
[Wed Apr  4 19:51:55 2018]  [<ffffffff8110d0fe>] ? do_vfs_ioctl+0x20e/0x880
[Wed Apr  4 19:51:55 2018]  [<ffffffff81238f86>] ? apparmor_cred_prepare+0x26/0x40
[Wed Apr  4 19:51:55 2018]  [<ffffffff810f3417>] ? SyS_faccessat+0x197/0x2c0
[Wed Apr  4 19:51:55 2018]  [<ffffffff8110d7f0>] ? SyS_ioctl+0x80/0xa0
[Wed Apr  4 19:51:55 2018]  [<ffffffff814afeb2>] ? system_call_fastpath+0x16/0x1b
[Wed Apr  4 19:51:55 2018] ---[ end trace 14fdad943159d688 ]---

Answer 1

这个日志是来自内核的警告，表明内核代码中可能有错误。

它告诉你，有东西试图释放IRQ 18，尽管它已经被释放了。就像你反复经历的那样，它意味着有东西在一次又一次地试图释放它。

Comm:字段显示它在运行ifconfig命令时，换句话说，配置网络接口。

调用堆栈还指示代码的一部分位于atl1c内核模块中，我认为该模块用于Atheros L1C千兆以太网，这是一个网络适配器。

因此，似乎有足够的相关性，以暗示某个地方的驱动程序的缺陷，为该设备。

另一方面，内核消息只是一个“警告”，所以它可能不是真正的bug (或者会导致问题的关键错误)，而是驱动程序设计中的更大问题(可能是因为某种原因反复释放IRQ .)。

在谷歌搜索这些术语的时候并没有出现太多.所以不确定这是否是一个已知的问题。

内核3.10很老..。这可能已经解决了，所以也许尝试一个较新的内核(如果这是一个选项)可能是个好主意。