search for: scsi_lib

...nnes Reinecke <hare at suse.com> > > Add a new field 'nr_reserved_cmds' to the SCSI host template to > instruct the block layer to set aside a tag space for reserved > commands. > > Signed-off-by: Hannes Reinecke <hare at suse.com> > --- > drivers/scsi/scsi_lib.c | 1 + > include/scsi/scsi_host.h | 6 ++++++ > 2 files changed, 7 insertions(+) > > diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c > index 610ee41fa54c..2967325df7a0 100644 > --- a/drivers/scsi/scsi_lib.c > +++ b/drivers/scsi/scsi_lib.c > @@ -1896,6 +189...

...nnes Reinecke <hare at suse.com> > > Add a new field 'nr_reserved_cmds' to the SCSI host template to > instruct the block layer to set aside a tag space for reserved > commands. > > Signed-off-by: Hannes Reinecke <hare at suse.com> > --- > drivers/scsi/scsi_lib.c | 1 + > include/scsi/scsi_host.h | 6 ++++++ > 2 files changed, 7 insertions(+) > > diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c > index 610ee41fa54c..2967325df7a0 100644 > --- a/drivers/scsi/scsi_lib.c > +++ b/drivers/scsi/scsi_lib.c > @@ -1896,6 +189...

....com> >> >> Add a new field 'nr_reserved_cmds' to the SCSI host template to >> instruct the block layer to set aside a tag space for reserved >> commands. >> >> Signed-off-by: Hannes Reinecke <hare at suse.com> >> --- >> drivers/scsi/scsi_lib.c | 1 + >> include/scsi/scsi_host.h | 6 ++++++ >> 2 files changed, 7 insertions(+) >> >> diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c >> index 610ee41fa54c..2967325df7a0 100644 >> --- a/drivers/scsi/scsi_lib.c >> +++ b/drivers/scsi/scsi...

...itialization? > > > Jens, how may we get more segments than blk_queue_max_segments? > Is driver expected to validate and drop such requests? > Whee! I'm not alone anymore! I have seen similar issues even on non-mq systems; occasionally I'm hitting this bug in drivers/scsi/scsi_lib.c:scsi_init_io() count = blk_rq_map_sg(req->q, req, sdb->table.sgl); BUG_ON(count > sdb->table.nents); There are actually two problems here: The one is that blk_rq_map_sg() requires a table (ie the last argument), but doesn't have any indications on how large the table is. So on...

...itialization? > > > Jens, how may we get more segments than blk_queue_max_segments? > Is driver expected to validate and drop such requests? > Whee! I'm not alone anymore! I have seen similar issues even on non-mq systems; occasionally I'm hitting this bug in drivers/scsi/scsi_lib.c:scsi_init_io() count = blk_rq_map_sg(req->q, req, sdb->table.sgl); BUG_ON(count > sdb->table.nents); There are actually two problems here: The one is that blk_rq_map_sg() requires a table (ie the last argument), but doesn't have any indications on how large the table is. So on...

...gt;> >> But this shouldn't be exposed anywhere.? And I prefer that over having >> magic requests/scsi_cmnd that do not have a valid ->device pointer. >> . >> > > (just looking at this again) > > Hi Christoph, > > So how would this look added in scsi_lib.c: > > struct scsi_cmnd *scsi_get_reserved_cmd(struct Scsi_Host *shost) > { > ????struct scsi_cmnd *scmd; > ????struct request *rq; > ????struct scsi_device *sdev = scsi_get_host_dev(shost); > > ????if (!sdev) > ??????? return NULL; > > ????rq = blk_mq_allo...

...n 0 USB Mass Storage device found at 11 [root /]# But there is a /dev/sda1. Then after a few minutes, I get: scsi: Device offlined - not ready after error recovery: host 7 channel 0 id 0 lun 0 7:0:0:0: Illegal state transition deleted->offline Badness in scsi_device_set_state at drivers/scsi/scsi_lib.c:1702 [<f88246d9>] scsi_device_set_state+0xd2/0xdd [scsi_mod] [<f8822903>] scsi_eh_offline_sdevs+0x49/0x5e [scsi_mod] [<f8822de9>] scsi_unjam_host+0x15a/0x16b [scsi_mod] [<f8822f0c>] scsi_error_handler+0x112/0x15a [scsi_mod] [<f8822dfa>] scsi_error_handler+0...

pvSCSI backend driver Signed-off-by: Tomonari Horikoshi <t.horikoshi@jp.fujitsu.com> Signed-off-by: Jun Kamada <kama@jp.fujitsu.com> ----- Jun Kamada _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...> Jens, how may we get more segments than blk_queue_max_segments? >> Is driver expected to validate and drop such requests? >> > Whee! I'm not alone anymore! > > I have seen similar issues even on non-mq systems; occasionally > I'm hitting this bug in drivers/scsi/scsi_lib.c:scsi_init_io() > > count = blk_rq_map_sg(req->q, req, sdb->table.sgl); > BUG_ON(count > sdb->table.nents); > > There are actually two problems here: > The one is that blk_rq_map_sg() requires a table (ie the last > argument), but doesn't have a...

I've got an i386 server running centos 4.2 with 3 3ware controllers in it -- an 8006-2 for the system disks and 2 7500-8s. On the 7500s, I'm running an all software RAID50. This morning I came in to find the system hung. Turns out a disk went overnight on one of the 7500s, and rather than a graceful failover I got this: Jan 6 01:03:58 $SERVER kernel: 3w-xxxx: scsi2: Command

On Tue, Mar 10, 2020 at 09:08:56PM +0000, John Garry wrote: > On 10/03/2020 18:32, Christoph Hellwig wrote: > > On Wed, Mar 11, 2020 at 12:25:28AM +0800, John Garry wrote: > > > From: Hannes Reinecke <hare at suse.com> > > > > > > Allocate a separate 'reserved_cmd_q' for sending reserved commands. > > > > Why? Reserved command

On Tue, Mar 10, 2020 at 09:08:56PM +0000, John Garry wrote: > On 10/03/2020 18:32, Christoph Hellwig wrote: > > On Wed, Mar 11, 2020 at 12:25:28AM +0800, John Garry wrote: > > > From: Hannes Reinecke <hare at suse.com> > > > > > > Allocate a separate 'reserved_cmd_q' for sending reserved commands. > > > > Why? Reserved command

...;list_lock, flags); + +- if (likely(cmd != NULL)) +- kmem_cache_free(shost->cmd_pool->slab, cmd); +- +- put_device(&sdev->sdev_gendev); ++ __scsi_put_command(cmd->device->host, cmd, &sdev->sdev_gendev); + } + EXPORT_SYMBOL(scsi_put_command); + +diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c +index a0cd6de..d94ea0f 100644 +--- a/drivers/scsi/scsi_lib.c ++++ b/drivers/scsi/scsi_lib.c +@@ -804,7 +804,7 @@ static struct scsi_cmnd *scsi_end_reques + return NULL; + } + +-static struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask) ++stru...

Hi! I tried to pcipassthrough usb-controllers to domu to use it with a memory-stick. First xen complained that the driver needs write-access to its configuration space, so I added these to pci-quirks. Since it still didn''t work I also added the device to pci-permissive but I still get an errormessage with Oops (at the end of this email) when sticking in the memory-stick. I tried

Hi! I tried to pcipassthrough usb-controllers to domu to use it with a memory-stick. First xen complained that the driver needs write-access to its configuration space, so I added these to pci-quirks. Since it still didn''t work I also added the device to pci-permissive but I still get an errormessage with Oops (at the end of this email) when sticking in the memory-stick. I tried

...elevator.c | 290 ++++++++++++++++---------- block/noop-iosched.c | 78 +++++-- drivers/block/nbd.c | 3 +- drivers/block/virtio_blk.c | 2 +- drivers/md/dm.c | 11 +- drivers/scsi/scsi_error.c | 5 +- drivers/scsi/scsi_lib.c | 11 +- drivers/scsi/scsi_transport_fc.c | 3 +- include/linux/blk-mq.h | 97 +++++++++ include/linux/blkdev.h | 44 +--- include/linux/elevator.h | 58 +++--- include/scsi/scsi_device.h | 1 + 26 files changed, 715 insertions(+), 518 dele...

...elevator.c | 290 ++++++++++++++++---------- block/noop-iosched.c | 78 +++++-- drivers/block/nbd.c | 3 +- drivers/block/virtio_blk.c | 2 +- drivers/md/dm.c | 11 +- drivers/scsi/scsi_error.c | 5 +- drivers/scsi/scsi_lib.c | 11 +- drivers/scsi/scsi_transport_fc.c | 3 +- include/linux/blk-mq.h | 97 +++++++++ include/linux/blkdev.h | 44 +--- include/linux/elevator.h | 58 +++--- include/scsi/scsi_device.h | 1 + 26 files changed, 715 insertions(+), 518 dele...

Hi, I have a virtual machine which fails to boot linux-4.1.8 while mounting file systems: > * Mounting local filesystem ... > ------------[ cut here ]------------ > kernel BUG at drivers/block/virtio_blk.c:172! > invalid opcode: 000 [#1] SMP > Modules linked in: pcspkr psmouse dm_log_userspace virtio_net e1000 fuse nfs lockd grace sunrpc fscache dm_snapshot dm_bufio dm_mirror

Hi, I have a virtual machine which fails to boot linux-4.1.8 while mounting file systems: > * Mounting local filesystem ... > ------------[ cut here ]------------ > kernel BUG at drivers/block/virtio_blk.c:172! > invalid opcode: 000 [#1] SMP > Modules linked in: pcspkr psmouse dm_log_userspace virtio_net e1000 fuse nfs lockd grace sunrpc fscache dm_snapshot dm_bufio dm_mirror

...- drivers/scsi/qla2xxx/qla_target.c | 6 +- drivers/scsi/qla4xxx/ql4_os.c | 2 +- drivers/scsi/qlogicpti.c | 20 +-- drivers/scsi/scsi_error.c | 29 +++-- drivers/scsi/scsi_ioctl.c | 4 +- drivers/scsi/scsi_lib.c | 2 +- drivers/scsi/smartpqi/smartpqi_init.c | 17 ++- drivers/scsi/sr.c | 4 +- drivers/scsi/st.c | 8 +- drivers/scsi/sun3_scsi.c | 6 +- drivers/scsi/sym53c8xx_2/sym_fw.c...