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

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Message-ID: <1f017284-1a29-49d8-b0d9-92409561990e@oracle.com>
Date: Wed, 29 Jan 2025 14:29:48 +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

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.

Thanks & Regards,
Harshvardhan