From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 653374617B; Mon, 3 Feb 2025 05:31:33 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 56FD740DD3; Mon, 3 Feb 2025 05:31:33 +0100 (CET) Received: from inbox.dpdk.org (inbox.dpdk.org [95.142.172.178]) by mails.dpdk.org (Postfix) with ESMTP id 821E940287 for ; Mon, 3 Feb 2025 05:31:31 +0100 (CET) Received: by inbox.dpdk.org (Postfix, from userid 33) id 7B9A84617C; Mon, 3 Feb 2025 05:31:31 +0100 (CET) From: bugzilla@dpdk.org To: dev@dpdk.org Subject: [DPDK/netuio Bug 1655] Kernel crash when hot-unplug igb_uio device while DPDK application is running Date: Mon, 03 Feb 2025 04:31:31 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: DPDK X-Bugzilla-Component: netuio X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: nandinipersad361@gmail.com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: dev@dpdk.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: multipart/alternative; boundary=17385570910.eEfCac.2169539 Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org --17385570910.eEfCac.2169539 Date: Mon, 3 Feb 2025 05:31:31 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All https://bugs.dpdk.org/show_bug.cgi?id=3D1655 Bug ID: 1655 Summary: Kernel crash when hot-unplug igb_uio device while DPDK application is running Product: DPDK Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: Normal Component: netuio Assignee: dev@dpdk.org Reporter: nandinipersad361@gmail.com Target Milestone: --- When device has been bound to igb_uio driver and application is running, hot-unplugging the device may cause kernel crash. Reason: When device is hot-unplugged, igb_uio driver will be removed which will des= troy UIO resources. Later trying to access any UIO resource will cause kernel cr= ash. Resolution/Workaround: If using DPDK for PCI HW hot-unplug, prefer to bind device with VFIO instea= d of IGB_UIO. Affected Environment/Platform: ALL. Driver/Module: igb_uio module. --=20 You are receiving this mail because: You are the assignee for the bug.= --17385570910.eEfCac.2169539 Date: Mon, 3 Feb 2025 05:31:31 +0100 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All

Bug ID	1655
Summary	Kernel crash when hot-unplug igb_uio device while DPDK applic= ation is running
Product	DPDK
Version	unspecified
Hardware	All
OS	All
Status	UNCONFIRMED
Severity	normal
Priority	Normal
Component	netuio
Assignee	dev@dpdk.org
Reporter	nandinipersad361@gmail.com
Target Milestone	---

When device has been bound to igb_=
uio driver and application is running,
hot-unplugging the device may cause kernel crash.

Reason:
When device is hot-unplugged, igb_uio driver will be removed which will des=
troy
UIO resources. Later trying to access any UIO resource will cause kernel cr=
ash.

Resolution/Workaround:
If using DPDK for PCI HW hot-unplug, prefer to bind device with VFIO instea=
d of
IGB_UIO.

Affected Environment/Platform:
ALL.

Driver/Module:
igb_uio module.

You are receiving this mail because:

You are the assignee for the bug.

=20=20=20=20=20=20=20=20=20=20

= --17385570910.eEfCac.2169539--