From: patchwork-bot+netdevbpf@kernel•org
To: Tony Nguyen <anthony.l.nguyen@intel•com>
Cc: davem@davemloft•net, kuba@kernel•org, pabeni@redhat•com,
edumazet@google•com, netdev@vger•kernel.org,
yinghsu@chromium•org, aleksandr.loktionov@intel•com,
himasekharx.reddy.pucha@intel•com
Subject: Re: [PATCH net-next] igb: Fix igb_down hung on surprise removal
Date: Fri, 23 Jun 2023 03:00:22 +0000 [thread overview]
Message-ID: <168748922233.4682.6082609033984138363.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20230620174732.4145155-1-anthony.l.nguyen@intel.com>
Hello:
This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel•org>:
On Tue, 20 Jun 2023 10:47:32 -0700 you wrote:
> From: Ying Hsu <yinghsu@chromium•org>
>
> In a setup where a Thunderbolt hub connects to Ethernet and a display
> through USB Type-C, users may experience a hung task timeout when they
> remove the cable between the PC and the Thunderbolt hub.
> This is because the igb_down function is called multiple times when
> the Thunderbolt hub is unplugged. For example, the igb_io_error_detected
> triggers the first call, and the igb_remove triggers the second call.
> The second call to igb_down will block at napi_synchronize.
> Here's the call trace:
> __schedule+0x3b0/0xddb
> ? __mod_timer+0x164/0x5d3
> schedule+0x44/0xa8
> schedule_timeout+0xb2/0x2a4
> ? run_local_timers+0x4e/0x4e
> msleep+0x31/0x38
> igb_down+0x12c/0x22a [igb 6615058754948bfde0bf01429257eb59f13030d4]
> __igb_close+0x6f/0x9c [igb 6615058754948bfde0bf01429257eb59f13030d4]
> igb_close+0x23/0x2b [igb 6615058754948bfde0bf01429257eb59f13030d4]
> __dev_close_many+0x95/0xec
> dev_close_many+0x6e/0x103
> unregister_netdevice_many+0x105/0x5b1
> unregister_netdevice_queue+0xc2/0x10d
> unregister_netdev+0x1c/0x23
> igb_remove+0xa7/0x11c [igb 6615058754948bfde0bf01429257eb59f13030d4]
> pci_device_remove+0x3f/0x9c
> device_release_driver_internal+0xfe/0x1b4
> pci_stop_bus_device+0x5b/0x7f
> pci_stop_bus_device+0x30/0x7f
> pci_stop_bus_device+0x30/0x7f
> pci_stop_and_remove_bus_device+0x12/0x19
> pciehp_unconfigure_device+0x76/0xe9
> pciehp_disable_slot+0x6e/0x131
> pciehp_handle_presence_or_link_change+0x7a/0x3f7
> pciehp_ist+0xbe/0x194
> irq_thread_fn+0x22/0x4d
> ? irq_thread+0x1fd/0x1fd
> irq_thread+0x17b/0x1fd
> ? irq_forced_thread_fn+0x5f/0x5f
> kthread+0x142/0x153
> ? __irq_get_irqchip_state+0x46/0x46
> ? kthread_associate_blkcg+0x71/0x71
> ret_from_fork+0x1f/0x30
>
> [...]
Here is the summary with links:
- [net-next] igb: Fix igb_down hung on surprise removal
https://git.kernel.org/netdev/net-next/c/004d25060c78
You are awesome, thank you!
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prev parent reply other threads:[~2023-06-23 3:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-20 17:47 [PATCH net-next] igb: Fix igb_down hung on surprise removal Tony Nguyen
2023-06-21 14:49 ` Simon Horman
2023-06-23 3:00 ` patchwork-bot+netdevbpf [this message]
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