Date: Wed, 21 Nov 2018 17:40:19 +0000 From: Paul Esson <Paul.Esson@Redstor.com> To: "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org> Subject: AHCI SATA controller timeouts Message-ID: <DB6P190MB0166894CA33EBC9B95780CA89EDA0@DB6P190MB0166.EURP190.PROD.OUTLOOK.COM>
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Hi Folks, I have a bhyve FreeBSD guest 11.2-RELEASE running on a FreeBSD host 11.2-RE= LEASE that is experiencing issues with a zvol presented from the host as a = BHYVE SATA DISK and used by the guest to create a zpool. I used the ahci-h= d block driver because it supported TRIM and I did not have the virtio-scsi= driver available. Anyway, I have this configuration running on a number of Dell PowerEdge R73= 0xd servers without issue, but we recently purchased a next generation R740= xd model and suddenly when I am generating lots of writes to the guest zpoo= l via a zfs send/receive I see the following timeout messages causing the i= /o to terminate. I've noted some online conversation around examples in a physical hardware = context but not virtual and wondered if anyone had seen anything similar? Nov 20 10:54:45 dc2-olbp-sn-15b kernel: ahcich6: Timeout on slot 14 port 0 Nov 20 10:54:52 dc2-olbp-sn-15b kernel: ahcich6: is 00000008 cs 00000000 ss= 00000000 rs 00006000 tfd 50 serr 00000000 cmd 0001ce17 Nov 20 10:54:52 dc2-olbp-sn-15b kernel: (ada0:ahcich6:0:0:0): SEND_FPDMA_QU= EUED DATA SET MANAGEMENT. ACB: 64 01 00 00 00 40 00 00 00 00 00 00 Nov 20 10:54:52 dc2-olbp-sn-15b kernel: (ada0:ahcich6:0:0:0): CAM status: C= ommand timeout Nov 20 10:54:52 dc2-olbp-sn-15b kernel: (ada0:ahcich6:0:0:0): Retrying comm= and Nov 21 15:12:09 dc2-olbp-sn-15b kernel: ahcich6: Timeout on slot 24 port 0 Nov 21 15:12:09 dc2-olbp-sn-15b kernel: ahcich6: is 00000000 cs 00000000 ss= 03000000 rs 03000000 tfd 50 serr 00000000 cmd 0001d917 Nov 21 15:12:09 dc2-olbp-sn-15b kernel: (ada0:ahcich6:0:0:0): WRITE_FPDMA_Q= UEUED. ACB: 61 00 b0 50 b5 40 22 00 00 01 00 00 Nov 21 15:12:09 dc2-olbp-sn-15b kernel: (ada0:ahcich6:0:0:0): CAM status: C= ommand timeout Nov 21 15:12:09 dc2-olbp-sn-15b kernel: (ada0:ahcich6:0:0:0): Retrying comm= and Regards, Paul Esson | Redstor Limited t +44 (0)118 951 5235 | m +44 (0)776 690 6514 e paul.esson@redstor.com<mailto:paul.esson@redstor.com> www.redstor.com<http://www.redstor.com/>; [http://partners.redstor.com/files/redstor_email_signatures_linkedin_icon_p= adding.png]<https://www.linkedin.com/company/50079>[http://partners.redstor= .com/files/redstor_email_signatures_twitter_icon_padding.png]<https://twitt= er.com/@redstor>[http://partners.redstor.com/files/redstor_email_signatures= _facebook_icon_padding.png]<https://www.facebook.com/Redstor/>[http://partn= ers.redstor.com/files/redstor_email_signatures_youtube_icon_padding.png]<ht= tps://www.youtube.com/user/RedstorVideo> [http://partners.redstor.com/files/NEW_logo_larger.png]<http://www.redstor.= com/>
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