linux-kernel - Re: v5.4.289 failed to boot with error megasas_build_io_fusion 3219 sge

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Message-ID: <1f225b8d-d958-4304-829e-8798884d9b6b@oracle.com>
Date: Wed, 29 Jan 2025 14:45:22 +0530
From: Harshvardhan Jha <harshvardhan.j.jha@...cle.com>
To: Greg KH <gregkh@...uxfoundation.org>
Cc: Konrad Wilk <konrad.wilk@...cle.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        "jgross@...e.com" <jgross@...e.com>,
        "sstabellini@...nel.org" <sstabellini@...nel.org>,
        "xen-devel@...ts.xenproject.org" <xen-devel@...ts.xenproject.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Harshit Mogalapalli <harshit.m.mogalapalli@...cle.com>,
        stable@...r.kernel.org
Subject: Re: v5.4.289 failed to boot with error megasas_build_io_fusion 3219
 sge_count (-12) is out of range


On 29/01/25 2:34 PM, Greg KH wrote:
> On Wed, Jan 29, 2025 at 02:29:48PM +0530, Harshvardhan Jha wrote:
>> Hi Greg,
>>
>> On 29/01/25 2:18 PM, Greg KH wrote:
>>> On Wed, Jan 29, 2025 at 02:13:34PM +0530, Harshvardhan Jha wrote:
>>>> Hi there,
>>>>
>>>> On 29/01/25 2:05 PM, Greg KH wrote:
>>>>> On Wed, Jan 29, 2025 at 02:03:51PM +0530, Harshvardhan Jha wrote:
>>>>>> Hi All,
>>>>>>
>>>>>> +stable
>>>>>>
>>>>>> There seems to be some formatting issues in my log output. I have
>>>>>> attached it as a file.
>>>>> Confused, what are you wanting us to do here in the stable tree?
>>>>>
>>>>> thanks,
>>>>>
>>>>> greg k-h
>>>> Since, this is reproducible on 5.4.y I have added stable. The culprit
>>>> commit which upon getting reverted fixes this issue is also present in
>>>> 5.4.y stable.
>>> What culprit commit?  I see no information here :(
>>>
>>> Remember, top-posting is evil...
>> My apologies,
>>
>> The stable tag v5.4.289 seems to fail to boot with the following prompt in an infinite loop:
>> [   24.427217] megaraid_sas 0000:65:00.0: megasas_build_io_fusion 3273 sge_count (-12) is out of range. Range is:  0-256
>>
>> Reverting the following patch seems to fix the issue:
>>
>> stable-5.4      : v5.4.285             - 5df29a445f3a xen/swiotlb: add
>> alignment check for dma buffers
>>
>> I tried changing swiotlb grub command line arguments but that didn't
>> seem to help much unfortunately and the error was seen again.
>>
> Ok, can you submit this revert with the information about why it should
> not be included in the 5.4.y tree and cc: everyone involved and then we
> will be glad to queue it up.
>
> thanks,
>
> greg k-h

This might be reproducible on other stable trees and mainline as well so
we will get it fixed there and I will submit the necessary fix to stable
when everything is sorted out on mainline.

Thanks & Regards,
Harshvardhan