Re: [HTCondor-users] STARTD_ENFORCE_DISK_LIMITS problem with LVM and QEMU live migration

["Anderson, Stuart B." <sba@xxxxxxxxxxx>]

> On Dec 29, 2025, at 10:34âAM, Anderson, Stuart B. <sba@xxxxxxxxxxx> wrote:
> 
> FYI, it looks like QEMU has an intersting limitation for Condor KVM EP with STARTD_ENFORCE_DISK_LIMITS enabled to use LVM, e.g.,
> 
> Dec 27 14:17:38 hov1 QEMU[3456386]: kvm: ../util/bitmap.c:167: bitmap_set: Assertion `start >= 0 && nr >= 0' failed.

FYI, it looks like this problem is more general and can be triggered by issuing lots of block device zero-fill requests (blkdiscard -z) during migration.

Thanks.
  
â
Stuart Anderson
sba@xxxxxxxxxxx