From: Nam Cao <namcao@linutronix.de>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Marc Zyngier <maz@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Richard Weinberger <richard@nod.at>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
linux-um@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/1] um: virt-pci: Switch to msi_create_parent_irq_domain()
Date: Fri, 27 Jun 2025 11:53:28 +0200 [thread overview]
Message-ID: <20250627095328.ce5O9YWf@linutronix.de> (raw)
In-Reply-To: <20250627094901.bkxjYmHj@linutronix.de>
On Fri, Jun 27, 2025 at 11:49:03AM +0200, Nam Cao wrote:
> My understanding of UM is limited, but I think I get it. We dereference a
> NULL pointer and get SIGSEGV. We go into that code path and lockdep yells.
>
> With the NULL pointer deref removed, we won't go into that path, so it
> should be good.
By "that code path" I mean SIGSEGV handler.
Nam
prev parent reply other threads:[~2025-06-27 9:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-26 14:47 [PATCH 0/1] um: MSI parent domain conversion Nam Cao
2025-06-26 14:47 ` [PATCH 1/1] um: virt-pci: Switch to msi_create_parent_irq_domain() Nam Cao
2025-06-27 8:24 ` Johannes Berg
2025-06-27 8:49 ` Nam Cao
2025-06-27 9:23 ` Johannes Berg
2025-06-27 9:49 ` Nam Cao
2025-06-27 9:53 ` Nam Cao [this message]
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