eth: sungem: remove .ndo_poll_controller to avoid deadlocks
Erhard reports netpoll warnings from sungem:
netpoll_send_skb_on_dev(): eth0 enabled interrupts in poll (gem_start_xmit+0x0/0x398)
WARNING: CPU: 1 PID: 1 at net/core/netpoll.c:370 netpoll_send_skb+0x1fc/0x20c
gem_poll_controller() disables interrupts, which may sleep.
We can't sleep in netpoll, it has interrupts disabled completely.
Strangely, gem_poll_controller() doesn't even poll the completions,
and instead acts as if an interrupt has fired so it just schedules
NAPI and exits. None of this has been necessary for years, since
netpoll invokes NAPI directly.
Metrics
Affected Vendors & Products
Wed, 06 Nov 2024 08:15:00 +0000
Type | Values Removed | Values Added |
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Metrics |
ssvc
|
Thu, 12 Sep 2024 08:30:00 +0000
Type | Values Removed | Values Added |
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Metrics |
ssvc
|
Wed, 11 Sep 2024 13:30:00 +0000
Type | Values Removed | Values Added |
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Metrics |
ssvc
|
Tue, 27 Aug 2024 19:00:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Linux
Linux linux Kernel |
|
Weaknesses | CWE-667 | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
Vendors & Products |
Linux
Linux linux Kernel |
|
Metrics |
cvssV3_1
|
cvssV3_1
|

Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-05-04T09:14:56.347Z
Reserved: 2024-06-18T19:36:34.932Z
Link: CVE-2024-38597

Updated: 2024-08-02T04:12:25.802Z

Status : Modified
Published: 2024-06-19T14:15:19.730
Modified: 2024-11-21T09:26:26.783
Link: CVE-2024-38597


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