Re: [Xen-devel] [PATCH v2] xen-blkfront: fix kernel panic with negotiate_mq error path

2018-11-06 Thread Juergen Gross
On 30/10/2018 17:49, Manjunath Patil wrote: > info->nr_rings isn't adjusted in case of ENOMEM error from > negotiate_mq(). This leads to kernel panic in error path. > > Typical call stack involving panic - > #8 page_fault at 8175936f > [exception RIP: blkif_free_ring+33] > RIP:

Re: [Xen-devel] [PATCH v2] xen-blkfront: fix kernel panic with negotiate_mq error path

2018-10-31 Thread Roger Pau Monné
On Tue, Oct 30, 2018 at 09:49:21AM -0700, Manjunath Patil wrote: > info->nr_rings isn't adjusted in case of ENOMEM error from > negotiate_mq(). This leads to kernel panic in error path. > > Typical call stack involving panic - > #8 page_fault at 8175936f > [exception RIP:

Re: [Xen-devel] [PATCH v2] xen-blkfront: fix kernel panic with negotiate_mq error path

2018-10-30 Thread Juergen Gross
On 30/10/2018 17:49, Manjunath Patil wrote: > info->nr_rings isn't adjusted in case of ENOMEM error from > negotiate_mq(). This leads to kernel panic in error path. > > Typical call stack involving panic - > #8 page_fault at 8175936f > [exception RIP: blkif_free_ring+33] > RIP:

[Xen-devel] [PATCH v2] xen-blkfront: fix kernel panic with negotiate_mq error path

2018-10-30 Thread Manjunath Patil
info->nr_rings isn't adjusted in case of ENOMEM error from negotiate_mq(). This leads to kernel panic in error path. Typical call stack involving panic - #8 page_fault at 8175936f [exception RIP: blkif_free_ring+33] RIP: a0149491 RSP: 8804f7673c08 RFLAGS: 00010292