* i2c-pasemi messages since kernel 6.16
@ 2025-08-10 16:47 Christian Zigotzky
2025-08-10 17:24 ` Christian Zigotzky
2025-08-11 16:12 ` Sven Peter
0 siblings, 2 replies; 4+ messages in thread
From: Christian Zigotzky @ 2025-08-10 16:47 UTC (permalink / raw)
To: Sven Peter
Cc: linux-i2c, linuxppc-dev, mad skateman, R.T.Dickinson, hypexed,
Christian Zigotzky
Hello Sven,
Since the kernel 6.16 we have the following messages during the boot.
[ 9.459706] i2c-pasemi 0000:00:1c.0: NACK, status 0x08210100
[ 9.649736] i2c-pasemi 0000:00:1c.0: Issuing reset due to status 0x08210100 (xfstatus 0x00000001)
[ 9.690696] i2c-pasemi 0000:00:1c.1: NACK, status 0x08210100
[ 9.708651] i2c-pasemi 0000:00:1c.1: Issuing reset due to status 0x08210100 (xfstatus 0x00000001)
[ 9.892693] i2c-pasemi 0000:00:1c.2: NACK, status 0x08210100
[ 9.911535] i2c-pasemi 0000:00:1c.2: Issuing reset due to status 0x08210100 (xfstatus 0x00000001)
What exactly do these messages mean?
Thanks,
Christian
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: i2c-pasemi messages since kernel 6.16
2025-08-10 16:47 i2c-pasemi messages since kernel 6.16 Christian Zigotzky
@ 2025-08-10 17:24 ` Christian Zigotzky
2025-08-11 16:12 ` Sven Peter
1 sibling, 0 replies; 4+ messages in thread
From: Christian Zigotzky @ 2025-08-10 17:24 UTC (permalink / raw)
To: Sven Peter
Cc: linux-i2c, linuxppc-dev, mad skateman, R.T.Dickinson, hypexed,
Christian Zigotzky
> On 10 August 2025 at 06:48 pm, Christian Zigotzky <chzigotzky@xenosoft.de> wrote:
>
> Hello Sven,
>
> Since the kernel 6.16 we have the following messages during the boot.
>
> [ 9.459706] i2c-pasemi 0000:00:1c.0: NACK, status 0x08210100
> [ 9.649736] i2c-pasemi 0000:00:1c.0: Issuing reset due to status 0x08210100 (xfstatus 0x00000001)
> [ 9.690696] i2c-pasemi 0000:00:1c.1: NACK, status 0x08210100
> [ 9.708651] i2c-pasemi 0000:00:1c.1: Issuing reset due to status 0x08210100 (xfstatus 0x00000001)
> [ 9.892693] i2c-pasemi 0000:00:1c.2: NACK, status 0x08210100
> [ 9.911535] i2c-pasemi 0000:00:1c.2: Issuing reset due to status 0x08210100 (xfstatus 0x00000001)
>
> What exactly do these messages mean?
>
> Thanks,
> Christian
Sven,
These are PCI devices.
[ 0.166709] pci 0000:00:1c.0: [1959:a003] type 00 class 0x0c0500 conventional PCI endpoint
[ 0.166750] pci 0000:00:1c.0: BAR 0 [io 0x870200-0x87023f]
[ 0.166866] pci 0000:00:1c.1: [1959:a003] type 00 class 0x0c0500 conventional PCI endpoint
[ 0.166901] pci 0000:00:1c.1: BAR 0 [io 0x870240-0x87027f]
[ 0.167017] pci 0000:00:1c.2: [1959:a003] type 00 class 0x0c0500 conventional PCI endpoint
[ 0.167053] pci 0000:00:1c.2: BAR 0 [io 0x870280-0x8702bf]
Cheers,
Christian
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: i2c-pasemi messages since kernel 6.16
2025-08-10 16:47 i2c-pasemi messages since kernel 6.16 Christian Zigotzky
2025-08-10 17:24 ` Christian Zigotzky
@ 2025-08-11 16:12 ` Sven Peter
2025-08-11 16:59 ` Christian Zigotzky
1 sibling, 1 reply; 4+ messages in thread
From: Sven Peter @ 2025-08-11 16:12 UTC (permalink / raw)
To: Christian Zigotzky
Cc: linux-i2c, linuxppc-dev, mad skateman, R.T.Dickinson, hypexed,
Christian Zigotzky
hi,
On 10.08.25 18:47, Christian Zigotzky wrote:
> Hello Sven,
>
> Since the kernel 6.16 we have the following messages during the boot.
>
> [ 9.459706] i2c-pasemi 0000:00:1c.0: NACK, status 0x08210100
> [ 9.649736] i2c-pasemi 0000:00:1c.0: Issuing reset due to status 0x08210100 (xfstatus 0x00000001)
> [ 9.690696] i2c-pasemi 0000:00:1c.1: NACK, status 0x08210100
> [ 9.708651] i2c-pasemi 0000:00:1c.1: Issuing reset due to status 0x08210100 (xfstatus 0x00000001)
> [ 9.892693] i2c-pasemi 0000:00:1c.2: NACK, status 0x08210100
> [ 9.911535] i2c-pasemi 0000:00:1c.2: Issuing reset due to status 0x08210100 (xfstatus 0x00000001)
>
> What exactly do these messages mean?
Do you just see these messages or are there also any other issues like a
device on the i2c bus not working anymore when it worked fine before?
We added some additional logging recently and I suspect that this has
always been happening and no one noticed.
Sven
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: i2c-pasemi messages since kernel 6.16
2025-08-11 16:12 ` Sven Peter
@ 2025-08-11 16:59 ` Christian Zigotzky
0 siblings, 0 replies; 4+ messages in thread
From: Christian Zigotzky @ 2025-08-11 16:59 UTC (permalink / raw)
To: Sven Peter
Cc: linux-i2c, linuxppc-dev, mad skateman, R.T.Dickinson, hypexed,
Christian Zigotzky
On 11 August 2025 at 06:12 pm, Sven Peter wrote:
> hi,
>
> On 10.08.25 18:47, Christian Zigotzky wrote:
>> Hello Sven,
>>
>> Since the kernel 6.16 we have the following messages during the boot.
>>
>> [ 9.459706] i2c-pasemi 0000:00:1c.0: NACK, status 0x08210100
>> [ 9.649736] i2c-pasemi 0000:00:1c.0: Issuing reset due to status
>> 0x08210100 (xfstatus 0x00000001)
>> [ 9.690696] i2c-pasemi 0000:00:1c.1: NACK, status 0x08210100
>> [ 9.708651] i2c-pasemi 0000:00:1c.1: Issuing reset due to status
>> 0x08210100 (xfstatus 0x00000001)
>> [ 9.892693] i2c-pasemi 0000:00:1c.2: NACK, status 0x08210100
>> [ 9.911535] i2c-pasemi 0000:00:1c.2: Issuing reset due to status
>> 0x08210100 (xfstatus 0x00000001)
>>
>> What exactly do these messages mean?
>
> Do you just see these messages or are there also any other issues like a
> device on the i2c bus not working anymore when it worked fine before?
> We added some additional logging recently and I suspect that this has
> always been happening and no one noticed.
>
>
>
> Sven
>
>
Hello Sven,
Thank you for your answer.
I just see these messages. There aren't any other issues.
Further information:
$ cat /proc/version
Linux version 6.12.22-powerpc64-smp (geeko@buildhost)
(powerpc64-suse-linux-gcc (SUSE Linux) 7.5.0, GNU ld (GNU Binutils;
devel:gcc / SLE-15) 2.43.1.20240828-150300.536) #1 SMP Tue Apr 8
09:47:26 CEST 2025
$ sudo dmesg | grep -i i2c
[ 5.032840] i2c_dev: i2c /dev entries driver
[ 5.440998] i2c i2c-9: Detected TI TMP423 chip at 0x4c
$ sudo i2cdetect -l
[sudo] password for christian:
i2c-3 i2c Radeon i2c bit bus 0x93 I2C adapter
i2c-10 i2c PA Semi SMBus adapter (0000:00:1c.1) I2C adapter
i2c-1 i2c Radeon i2c bit bus 0x91 I2C adapter
i2c-8 i2c card0-DP-1 I2C adapter
i2c-6 i2c Radeon i2c bit bus 0x96 I2C adapter
i2c-4 i2c Radeon i2c bit bus 0x94 I2C adapter
i2c-11 i2c PA Semi SMBus adapter (0000:00:1c.2) I2C adapter
i2c-2 i2c Radeon i2c bit bus 0x92 I2C adapter
i2c-0 i2c Radeon i2c bit bus 0x90 I2C adapter
i2c-9 i2c PA Semi SMBus adapter (0000:00:1c.0) I2C adapter
i2c-7 i2c Radeon i2c bit bus 0x97 I2C adapter
i2c-5 i2c Radeon i2c bit bus 0x95 I2C adapter
$ cat /proc/version
Linux version 6.16.0-powerpc64-smp (geeko@buildhost)
(powerpc64-suse-linux-gcc (SUSE Linux) 11.5.0, GNU ld (GNU Binutils;
devel:gcc / SLE-15) 2.43.1.20240828-150300.536) #1 SMP Mon Jul 28
06:44:21 CEST 2025
$ sudo dmesg | grep -i i2c
[sudo] password for christian:
[ 3.381852] i2c_dev: i2c /dev entries driver
[ 3.591326] i2c-pasemi 0000:00:1c.0: NACK, status 0x08210100
[ 3.604687] i2c-pasemi 0000:00:1c.0: Issuing reset due to status
0x08210100 (xfstatus 0x00000001)
[ 3.623181] i2c i2c-9: Detected TI TMP423 chip at 0x4c
[ 3.640313] i2c-pasemi 0000:00:1c.0: NACK, status 0x08210100
[ 3.653561] i2c-pasemi 0000:00:1c.0: Issuing reset due to status
0x08210100 (xfstatus 0x00000001)
[ 3.667314] i2c-pasemi 0000:00:1c.0: NACK, status 0x08210100
[ 3.680416] i2c-pasemi 0000:00:1c.0: Issuing reset due to status
0x08210100 (xfstatus 0x00000001)
[ 3.694312] i2c-pasemi 0000:00:1c.0: NACK, status 0x08210100
[ 3.708309] i2c-pasemi 0000:00:1c.1: NACK, status 0x08210100
[ 3.721268] i2c-pasemi 0000:00:1c.1: Issuing reset due to status
0x08210100 (xfstatus 0x00000001)
[ 3.735309] i2c-pasemi 0000:00:1c.1: NACK, status 0x08210100
[ 3.748276] i2c-pasemi 0000:00:1c.1: Issuing reset due to status
0x08210100 (xfstatus 0x00000001)
[ 3.762309] i2c-pasemi 0000:00:1c.1: NACK, status 0x08210100
[ 3.775289] i2c-pasemi 0000:00:1c.1: Issuing reset due to status
0x08210100 (xfstatus 0x00000001)
[ 3.789309] i2c-pasemi 0000:00:1c.1: NACK, status 0x08210100
[ 3.802265] i2c-pasemi 0000:00:1c.1: Issuing reset due to status
0x08210100 (xfstatus 0x00000001)
[ 3.816315] i2c-pasemi 0000:00:1c.1: NACK, status 0x08210100
[ 3.830308] i2c-pasemi 0000:00:1c.2: NACK, status 0x08210100
[ 3.843392] i2c-pasemi 0000:00:1c.2: Issuing reset due to status
0x08210100 (xfstatus 0x00000001)
[ 3.857308] i2c-pasemi 0000:00:1c.2: NACK, status 0x08210100
[ 3.870637] i2c-pasemi 0000:00:1c.2: Issuing reset due to status
0x08210100 (xfstatus 0x00000001)
[ 3.884307] i2c-pasemi 0000:00:1c.2: NACK, status 0x08210100
[ 3.897148] i2c-pasemi 0000:00:1c.2: Issuing reset due to status
0x08210100 (xfstatus 0x00000001)
[ 3.911309] i2c-pasemi 0000:00:1c.2: NACK, status 0x08210100
[ 3.924874] i2c-pasemi 0000:00:1c.2: Issuing reset due to status
0x08210100 (xfstatus 0x00000001)
[ 3.939307] i2c-pasemi 0000:00:1c.2: NACK, status 0x08210100
[ 9.335546] i2c-pasemi 0000:00:1c.0: Issuing reset due to status
0x08210100 (xfstatus 0x00000001)
sudo i2cdetect -l
[sudo] password for christian:
i2c-3 i2c Radeon i2c bit bus 0x93 I2C adapter
i2c-10 i2c PA Semi SMBus adapter (0000:00:1c.1) I2C adapter
i2c-1 i2c Radeon i2c bit bus 0x91 I2C adapter
i2c-8 i2c card0-DP-1 I2C adapter
i2c-6 i2c Radeon i2c bit bus 0x96 I2C adapter
i2c-4 i2c Radeon i2c bit bus 0x94 I2C adapter
i2c-11 i2c PA Semi SMBus adapter (0000:00:1c.2) I2C adapter
i2c-2 i2c Radeon i2c bit bus 0x92 I2C adapter
i2c-0 i2c Radeon i2c bit bus 0x90 I2C adapter
i2c-9 i2c PA Semi SMBus adapter (0000:00:1c.0) I2C adapter
i2c-7 i2c Radeon i2c bit bus 0x97 I2C adapter
i2c-5 i2c Radeon i2c bit bus 0x95 I2C adapter
Cheers,
Christian
^ permalink raw reply [flat|nested] 4+ messages in thread
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2025-08-10 16:47 i2c-pasemi messages since kernel 6.16 Christian Zigotzky
2025-08-10 17:24 ` Christian Zigotzky
2025-08-11 16:12 ` Sven Peter
2025-08-11 16:59 ` Christian Zigotzky
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