- Original Message -
> From: "Laurence Oberman"
> To: "Linux SCSI List"
> Sent: Wednesday, February 8, 2017 3:07:12 PM
> Subject: Patch: lpfc: Modify Emulex lpfc LPFC_DEFAULT_SG_SEG_CNT to 128 for
> default larger sg_io capability
>
> We have
We have been seeing issues with qemu_kvm virtual guests where if they issue
I/O to direct attached SCSI passthrough LUNS with large I/O sizes such as 512K
the sg_io will fail with -EINVAL.
Simple reproducer is here.
strace -e ioctl sg_dd if=/dev/zero of=/dev/sdae bpt=0x400 count=0x400 blk_sgio=1
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