다음 dmesg 로그에서 이러한 경고가 무엇을 의미하는지 밝힐 수 있는 사람이 있습니까? atl1c 모듈이 완전히 로드되지 않았다는 의미입니까, 아니면 단지 경고입니까?
로그를 더 잘 이해하는 데 도움이 되는 모든 정보를 주시면 감사하겠습니다.
감사해요.
[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 ]---
답변1
이 로그는 커널 코드 어딘가에 버그가 있을 수 있다는 커널의 경고입니다.
IRQ 18이 이전에 해제되었음에도 불구하고 무엇인가가 IRQ 18을 해제하려고 시도하고 있음을 알려줍니다. 이런 일이 반복적으로 발생하면 무언가가 계속해서 이를 해제하려고 한다는 신호입니다.
Comm: 필드에는 ifconfig네트워크 인터페이스를 구성하는 실행 중인 명령이 표시됩니다.
호출 스택은 또한 코드의 일부가 atl1c네트워크 어댑터인 Atheros L1C 기가비트 이더넷용 커널 모듈에 있음을 나타냅니다.
따라서 이 장치의 드라이버에 버그가 있음을 나타내는 충분한 상관관계가 있는 것 같습니다.
반면에 커널 메시지는 단지 "경고"이므로 실제 오류(또는 문제를 일으키는 심각한 오류)가 아니라 드라이버 설계에 더 많은 문제가 있을 수 있습니다(일부 사용자에게는 IRQ를 반복적으로 릴리스할 수도 있음). 이유 ...)
이러한 용어 중 일부를 Google에서 검색해도 실제로는 많이 나오지 않았습니다. 따라서 이것이 알려진 문제인지 확실하지 않습니다.
커널 3.10은 꽤 오래된 버전입니다. 이 문제는 해결되었을 수 있으므로 최신 커널을 사용해 보는 것이 좋습니다(해당 옵션이 있는 경우).