** Information type changed from Proprietary to Public
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Artful)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1712249
Title:
[Bug] Crystal Ridge: Fix device-dax sysfs duplicate name warning /
failure
Status in intel:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Artful:
Incomplete
Bug description:
Fix warnings of the form...
WARNING: CPU: 10 PID: 4983 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x62/0x80
sysfs: cannot create duplicate filename '/class/dax/dax12.0'
Call Trace:
dump_stack+0x63/0x86
__warn+0xcb/0xf0
warn_slowpath_fmt+0x5a/0x80
? kernfs_path_from_node+0x4f/0x60
sysfs_warn_dup+0x62/0x80
sysfs_do_create_link_sd.isra.2+0x97/0xb0
sysfs_create_link+0x25/0x40
device_add+0x266/0x630
devm_create_dax_dev+0x2cf/0x340 [dax]
dax_pmem_probe+0x1f5/0x26e [dax_pmem]
nvdimm_bus_probe+0x71/0x120
...by reusing the namespace id for the device-dax instance name.
Now that we have decided that there will never by more than one
device-dax instance per libnvdimm-namespace parent device [1], we can
directly reuse the namepace ids. There are some possible follow-on
cleanups, but those are saved for a later patch to simplify the -stable
backport.
[1]: https://lists.01.org/pipermail/linux-nvdimm/2016-December/008266.html
Fixes: 98a29c39dc68 ("libnvdimm, namespace: allow creation of multiple
pmem...")
Cc: Jeff Moyer <jmo...@redhat.com>
Cc: <sta...@vger.kernel.org>
Reported-by: Dariusz Dokupil <dariusz.doku...@intel.com>
Signed-off-by: Dan Williams <dan.j.willi...@intel.com>
Target Release: 17.10
Target Kernel: 4.13
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