From: "Mateusz Jończyk" <mat.jonczyk@o2.pl>
To: Jean Delvare <jdelvare@suse.de>
Cc: linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
ruirui.yang@linux.dev, Wolfram Sang <wsa@kernel.org>
Subject: [Regression] dmesg warnings after "i2c: smbus: Support up to 8 SPD EEPROMs"
Date: Tue, 30 Apr 2024 21:39:03 +0200 [thread overview]
Message-ID: <53582ef1-6d05-4379-a445-5f879cd676b8@o2.pl> (raw)
Hello,
I have received a regression report on
commit 13e3a512a29001c ("i2c: smbus: Support up to 8 SPD EEPROMs")
as I was subscribed to some kernel Bugzilla thread and I'm posting it here
to make you aware of it.
This thread was
Bug 213345 - i801_smbus: Timeout waiting for interrupt, driver can't access SMBus
ruirui.yang@linux.dev on 2024-04-19 08:22:57 UTC wrote:
> I got similar issue on thinkpad X1 gen9 with latest 6.9.0-rc4+
> Git bisect the first bad commit is "13e3a512a29001c i2c: smbus: Support up to 8 SPD EEPROMs
> "
>
> modprobe without param:
> [ 1290.401393] i801_smbus 0000:00:1f.4: SPD Write Disable is set
> [ 1290.401486] i801_smbus 0000:00:1f.4: SMBus using PCI interrupt
> [ 1290.403340] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1290.403383] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1290.403410] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1290.403437] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1290.403465] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1290.403492] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1290.403519] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1290.403546] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
>
> with param
> [ 1314.568785] i801_smbus 0000:00:1f.4: Interrupt disabled by user
> [ 1314.568837] i801_smbus 0000:00:1f.4: SPD Write Disable is set
> [ 1314.568894] i801_smbus 0000:00:1f.4: SMBus using po*lling
> [ 1314.570230] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1314.570257] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1314.570283] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1314.570310] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1314.570336] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1314.570362] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1314.570389] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [ 1314.570415] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
Link: https://bugzilla.kernel.org/show_bug.cgi?id=213345
The param mentioned was i2c-i801.disable_features=0x10, which disables interrupt usage
of this driver.
Please decide if this is serious enough to warrant a revert.
Greetings,
Mateusz
next reply other threads:[~2024-04-30 19:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-30 19:39 Mateusz Jończyk [this message]
2024-05-01 7:27 ` [Regression] dmesg warnings after "i2c: smbus: Support up to 8 SPD EEPROMs" Wolfram Sang
2024-05-01 9:57 ` Heiner Kallweit
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