Re: next/master bisection: baseline.bootrr.intel-igb-probed on kontron-pitx-imx8m

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On Sat, Aug 06, 2022 at 01:48:25PM -0700, KernelCI bot wrote:

The KernelCI bisection bot found that 5a46079a96451 "PM: domains: Delete
usage of driver_deferred_probe_check_state()" triggered a failure to
probe the PCI controller or attached ethernet on kontron-pitx-imx8m.
There's no obvious errors in the boot log when things fail, we simply
don't see any of the announcements from the PCI controller probe like we
do on a working boot:

<6>[    2.434563] imx6q-pcie 33800000.pcie: host bridge /soc@0/pcie@33800000 ranges:
<6>[    2.436149] imx6q-pcie 33c00000.pcie: host bridge /soc@0/pcie@33c00000 ranges:
<6>[    2.436168] imx6q-pcie 33c00000.pcie:   No bus range found for /soc@0/pcie@33c00000, using [bus 00-ff]
<6>[    2.436208] imx6q-pcie 33c00000.pcie:       IO 0x0027f80000..0x0027f8ffff -> 0x0000000000
<6>[    2.436233] imx6q-pcie 33c00000.pcie:      MEM 0x0020000000..0x0027efffff -> 0x0020000000
<6>[    2.436985] imx6q-pcie 33c00000.pcie: iATU unroll: enabled
<6>[    2.436993] imx6q-pcie 33c00000.pcie: Detected iATU regions: 4 outbound, 4 inbound
<6>[    2.439329] sdhci-esdhc-imx 30b50000.mmc: Got WP GPIO
<6>[    2.447119] imx6q-pcie 33800000.pcie:       IO 0x001ff80000..0x001ff8ffff -> 0x0000000000
<4>[    2.455485] sdhci-esdhc-imx 30b50000.mmc: drop HS400 support since no 8-bit bus
<6>[    2.464884] imx6q-pcie 33800000.pcie:      MEM 0x0018000000..0x001fefffff -> 0x0018000000
<6>[    2.464895] mmc0: SDHCI controller on 30b40000.mmc [30b40000.mmc] using ADMA
<6>[    2.504586] mmc1: SDHCI controller on 30b50000.mmc [30b50000.mmc] using ADMA
<6>[    2.537041] imx6q-pcie 33c00000.pcie: Link up
<6>[    2.547713] imx6q-pcie 33c00000.pcie: Link: Gen2 disabled
<6>[    2.553652] imx6q-pcie 33c00000.pcie: Link up, Gen1
<6>[    2.559036] imx6q-pcie 33c00000.pcie: Link up
<6>[    2.563987] imx6q-pcie 33c00000.pcie: PCI host bridge to bus 0001:00

https://storage.kernelci.org/mainline/master/v5.19-7280-gb44f2fd87919b/arm64/defconfig/clang-14/lab-kontron/baseline-kontron-pitx-imx8m.txt

(interleaved with the SDHCI probe which is in the failing boot) though I
am wondering if the "no bus range found..." warning above might have
been escallated into a failure to probe.

I've included the full bisection report below, including links to more
information including full boot failing logs plus a reported-by tag for
the bot.

> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
> * This automated bisection report was sent to you on the basis  *
> * that you may be involved with the breaking commit it has      *
> * found.  No manual investigation has been done to verify it,   *
> * and the root cause of the problem may be somewhere else.      *
> *                                                               *
> * If you do send a fix, please include this trailer:            *
> *   Reported-by: "kernelci.org bot" <bot@xxxxxxxxxxxx>          *
> *                                                               *
> * Hope this helps!                                              *
> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
> 
> next/master bisection: baseline.bootrr.intel-igb-probed on kontron-pitx-imx8m
> 
> Summary:
>   Start:      861397378de91 Add linux-next specific files for 20220803
>   Plain log:  https://storage.kernelci.org/next/master/next-20220803/arm64/defconfig+crypto/gcc-10/lab-kontron/baseline-kontron-pitx-imx8m.txt
>   HTML log:   https://storage.kernelci.org/next/master/next-20220803/arm64/defconfig+crypto/gcc-10/lab-kontron/baseline-kontron-pitx-imx8m.html
>   Result:     5a46079a96451 PM: domains: Delete usage of driver_deferred_probe_check_state()
> 
> Checks:
>   revert:     PASS
>   verify:     PASS
> 
> Parameters:
>   Tree:       next
>   URL:        https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>   Branch:     master
>   Target:     kontron-pitx-imx8m
>   CPU arch:   arm64
>   Lab:        lab-kontron
>   Compiler:   gcc-10
>   Config:     defconfig+crypto
>   Test case:  baseline.bootrr.intel-igb-probed
> 
> Breaking commit found:
> 
> -------------------------------------------------------------------------------
> commit 5a46079a96451cfb15e4f5f01f73f7ba24ef851a
> Author: Saravana Kannan <saravanak@xxxxxxxxxx>
> Date:   Wed Jun 1 00:06:57 2022 -0700
> 
>     PM: domains: Delete usage of driver_deferred_probe_check_state()
>     
>     Now that fw_devlink=on by default and fw_devlink supports
>     "power-domains" property, the execution will never get to the point
>     where driver_deferred_probe_check_state() is called before the supplier
>     has probed successfully or before deferred probe timeout has expired.
>     
>     So, delete the call and replace it with -ENODEV.
>     
>     Tested-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
>     Reviewed-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
>     Signed-off-by: Saravana Kannan <saravanak@xxxxxxxxxx>
>     Link: https://lore.kernel.org/r/20220601070707.3946847-2-saravanak@xxxxxxxxxx
>     Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> 
> diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
> index 739e52cd4aba5..3e86772d5fac5 100644
> --- a/drivers/base/power/domain.c
> +++ b/drivers/base/power/domain.c
> @@ -2730,7 +2730,7 @@ static int __genpd_dev_pm_attach(struct device *dev, struct device *base_dev,
>  		mutex_unlock(&gpd_list_lock);
>  		dev_dbg(dev, "%s() failed to find PM domain: %ld\n",
>  			__func__, PTR_ERR(pd));
> -		return driver_deferred_probe_check_state(base_dev);
> +		return -ENODEV;
>  	}
>  
>  	dev_dbg(dev, "adding to PM domain %s\n", pd->name);
> -------------------------------------------------------------------------------
> 
> 
> Git bisection log:
> 
> -------------------------------------------------------------------------------
> git bisect start
> # good: [7c6327c77d509e78bff76f2a4551fcfee851682e] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
> git bisect good 7c6327c77d509e78bff76f2a4551fcfee851682e
> # bad: [861397378de91c64dec69a160595b891f443294f] Add linux-next specific files for 20220803
> git bisect bad 861397378de91c64dec69a160595b891f443294f
> # good: [9caf5c540b57105ac31f351518d83e1884c3d64a] Merge branch 'master' of git://linuxtv.org/media_tree.git
> git bisect good 9caf5c540b57105ac31f351518d83e1884c3d64a
> # good: [5ec97d04fa30ac49b48a141c0ee6bbe3038b0dad] Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm.git
> git bisect good 5ec97d04fa30ac49b48a141c0ee6bbe3038b0dad
> # bad: [f95826f64a15aefb5e82a2a51341afd30cae191a] Merge branch 'next' of git://github.com/awilliam/linux-vfio.git
> git bisect bad f95826f64a15aefb5e82a2a51341afd30cae191a
> # good: [b5276c924497705ca927ad85a763c37f2de98349] drivers: lkdtm: fix clang -Wformat warning
> git bisect good b5276c924497705ca927ad85a763c37f2de98349
> # bad: [8d0a69bdbdaaf73040a80479497f153f43120787] Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git
> git bisect bad 8d0a69bdbdaaf73040a80479497f153f43120787
> # good: [62776e969e13c7124e614937c0333dc24c0db0db] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git
> git bisect good 62776e969e13c7124e614937c0333dc24c0db0db
> # good: [3413a46f9d313b6870e1c2fd5bae2892b725ef2e] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds.git
> git bisect good 3413a46f9d313b6870e1c2fd5bae2892b725ef2e
> # bad: [2fd26970cf66bd52dc42843c46968040caa8c9a1] Revert "kernfs: Change kernfs_notify_list to llist."
> git bisect bad 2fd26970cf66bd52dc42843c46968040caa8c9a1
> # bad: [5f8954e099b8ae96e7de1bb95950e00c85bedd40] Revert "mwifiex: fix sleep in atomic context bugs caused by dev_coredumpv"
> git bisect bad 5f8954e099b8ae96e7de1bb95950e00c85bedd40
> # bad: [71066545b48e4259f89481199a0bbc7c35457738] driver core: Set fw_devlink.strict=1 by default
> git bisect bad 71066545b48e4259f89481199a0bbc7c35457738
> # bad: [f8217275b57aa48d98cc42051c2aac34152718d6] net: mdio: Delete usage of driver_deferred_probe_check_state()
> git bisect bad f8217275b57aa48d98cc42051c2aac34152718d6
> # bad: [24a026f85241a01bbcfe1b263caeeaa9a79bab40] pinctrl: devicetree: Delete usage of driver_deferred_probe_check_state()
> git bisect bad 24a026f85241a01bbcfe1b263caeeaa9a79bab40
> # bad: [5a46079a96451cfb15e4f5f01f73f7ba24ef851a] PM: domains: Delete usage of driver_deferred_probe_check_state()
> git bisect bad 5a46079a96451cfb15e4f5f01f73f7ba24ef851a
> # first bad commit: [5a46079a96451cfb15e4f5f01f73f7ba24ef851a] PM: domains: Delete usage of driver_deferred_probe_check_state()
> -------------------------------------------------------------------------------
> 
> 
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