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

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Message-ID: <2025012956-jiffy-condone-3137@gregkh>
Date: Wed, 29 Jan 2025 10:04:34 +0100
From: Greg KH <gregkh@...uxfoundation.org>
To: Harshvardhan Jha <harshvardhan.j.jha@...cle.com>
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 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