linux-kernel - Re: [PATCH 6.15 000/515] 6.15.11-rc1 review

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Message-ID: <CACMJSesMDcUM+bvmT76m2s05a+-T7NxGQwe72yS03zkEJ-KzCw@mail.gmail.com>
Date: Tue, 26 Aug 2025 14:06:04 +0200
From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Naresh Kamboju <naresh.kamboju@...aro.org>, stable@...r.kernel.org, 
	patches@...ts.linux.dev, linux-kernel@...r.kernel.org, 
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org, linux@...ck-us.net, 
	shuah@...nel.org, patches@...nelci.org, lkft-triage@...ts.linaro.org, 
	pavel@...x.de, jonathanh@...dia.com, f.fainelli@...il.com, 
	sudipm.mukherjee@...il.com, srw@...dewatkins.net, rwarsow@....de, 
	conor@...nel.org, hargar@...rosoft.com, broonie@...nel.org, achill@...ill.org, 
	Ben Copeland <benjamin.copeland@...aro.org>, Anders Roxell <anders.roxell@...aro.org>, 
	Dan Carpenter <dan.carpenter@...aro.org>, Arnd Bergmann <arnd@...db.de>, 
	Bjorn Andersson <andersson@...nel.org>, linux-arm-msm <linux-arm-msm@...r.kernel.org>, 
	Linux ARM <linux-arm-kernel@...ts.infradead.org>, srinivas.kandagatla@....qualcomm.com
Subject: Re: [PATCH 6.15 000/515] 6.15.11-rc1 review

On Tue, 19 Aug 2025 at 13:52, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> On Tue, Aug 19, 2025 at 01:30:46PM +0200, Bartosz Golaszewski wrote:
> > On Tue, 19 Aug 2025 at 12:02, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
> > >
> > > On Tue, 19 Aug 2025 at 00:18, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
> > > >
> > > >
> > > > Boot regression: stable-rc 6.15.11-rc1 arm64 Qualcomm Dragonboard 410c
> > > > Unable to handle kernel NULL pointer dereference
> > > > qcom_scm_shm_bridge_enable
> > >
> > > I have reverted the following patch and the regression got fixed.
> > >
> > > firmware: qcom: scm: initialize tzmem before marking SCM as available
> > >     [ Upstream commit 87be3e7a2d0030cda6314d2ec96b37991f636ccd ]
> > >
> >
> > Hi! I'm on vacation, I will look into this next week. I expect there
> > to be a fix on top of this commit.
>
> Ok, I'll go and drop this one from the queues now, thanks.
>
> greg k-h

Hi!

The issue was caused by only picking up commit 7ab36b51c6bee
("firmware: qcom: scm: request the waitqueue irq *after* initializing
SCM") into stable, while the following four must be applied instead:

23972da96e1ee ("firmware: qcom: scm: remove unused arguments from SHM
bridge routines")
dc3f4e75c54c1 ("firmware: qcom: scm: take struct device as argument in
SHM bridge enable")
87be3e7a2d003 ("firmware: qcom: scm: initialize tzmem before marking
SCM as available")
7ab36b51c6bee ("firmware: qcom: scm: request the waitqueue irq *after*
initializing SCM")

Bartosz