Date: Thu, 17 Dec 2020 17:40:16 +0300 From: Yuri Pankov <yuripv@yuripv.dev> To: Andriy Gapon <avg@FreeBSD.org>, current@freebsd.org Subject: Re: installation on pvscsi fails with "The request was too large for this host" Message-ID: <e7372eda-4b23-e4e1-c912-584d63b75888@yuripv.dev> In-Reply-To: <bca69f61-f7a6-2817-c7cd-13b248496d37@FreeBSD.org> References: <fc910f87-ba02-9e20-213e-40828da72670@yuripv.dev> <bca69f61-f7a6-2817-c7cd-13b248496d37@FreeBSD.org>
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Andriy Gapon wrote: > On 17/12/2020 07:02, Yuri Pankov wrote: >> Trying to install latest snapshot (20201210) on a VMware ESXi/Workstation VMs >> with pvscsi fails on bootloader step, and the following is in dmesg: >> >> pvscsi0: pvscsi_execute_ccb error 27 >> pvscsi0: pvscsi_execute_ccb error 27 >> (da0:pvscsi0:0:0:0): WRITE(10). CDB: 2a 00 00 00 00 28 00 04 00 >> (da0:pvscsi0:0:0:0): CAM status: The request was too large for this host >> (da0:pvscsi0:0:0:0): Error 22, Unretryable error >> (da0:pvscsi0:0:0:0): WRITE(10). CDB: 2a 00 00 00 00 28 00 04 00 >> (da0:pvscsi0:0:0:0): CAM status: The request was too large for this host >> (da0:pvscsi0:0:0:0): Error 22, Unretryable error >> >> That is the first I'm trying installing on pvscsi since it was integrated, so no >> idea if it worked previously. If yes, I have not tried to bisect this yet >> hoping that it could be identified as related to any of the recent changes. >> >> The VMs in question are set with 8-64 GB RAM, and 100 GB boot disks. > > Not an expert in this areas, but that command tried to transfer 0x400 / 1024 > blocks, which is 512KB of data. > Could it be that the problem is revealed by the MAXPHYS increase? > There might be a bug in pvscsi where it does not respect or correctly advertise > some limit. There could be a similar issue with VMware itself (its emulation of > a disk / target). Yes, it looks like reverting MAXPHYS back to 128K made the problem disappear, successfully installed VM from resulting cdrom image.
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