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fs-rhel6_x86_64-6.0.3.300
Obsolete
The latest patch(es) : sfha-rhel6_x86_64-6.0.5 
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 Basic information
Release type: Patch
Release date: 2013-12-10
OS update support: None
Technote: None
Documentation: None
Popularity: 6514 viewed    1238 downloaded
Download size: 10.16 MB
Checksum: 560886259

 Applies to one or more of the following products:
VirtualStore 6.0.1 On RHEL6 x86-64
Storage Foundation 6.0.1 On RHEL6 x86-64
Storage Foundation Cluster File System 6.0.1 On RHEL6 x86-64
Storage Foundation for Oracle RAC 6.0.1 On RHEL6 x86-64
Storage Foundation HA 6.0.1 On RHEL6 x86-64

 Obsolete patches, incompatibilities, superseded patches, or other requirements:

This patch is obsolete. It is superseded by: Release date
sfha-rhel6_x86_64-6.0.5 2014-04-15

This patch supersedes the following patches: Release date
odm-rhel6_x86_64-6.0.3.100 (obsolete) 2013-09-19
fs-rhel6_x86_64-6.0.3.100 (obsolete) 2013-04-05
fs-rhel6_x86_64-6.0.1.300a (obsolete) 2012-12-20
fs-rhel6_x86_64-6.0.1.200 (obsolete) 2012-09-20

This patch requires: Release date
sfha-rhel6_x86_64-6.0.3 (obsolete) 2013-02-01

 Fixes the following incidents:
3349650, 3349652, 3356841, 3356845, 3356892, 3356895, 3356909, 3357264, 3357278, 3384781

 Patch ID:
VRTSvxfs-6.0.300.300-RHEL6
VRTSodm-6.0.300.300-RHEL6

 Readme file  [Save As...]
                          * * * READ ME * * *
                 * * * Veritas File System 6.0.3 * * *
                      * * * Public Hot Fix 3 * * *
                         Patch Date: 2013-12-09


This document provides the following information:

   * PATCH NAME
   * OPERATING SYSTEMS SUPPORTED BY THE PATCH
   * PACKAGES AFFECTED BY THE PATCH
   * BASE PRODUCT VERSIONS FOR THE PATCH
   * SUMMARY OF INCIDENTS FIXED BY THE PATCH
   * DETAILS OF INCIDENTS FIXED BY THE PATCH
   * INSTALLATION PRE-REQUISITES
   * INSTALLING THE PATCH
   * REMOVING THE PATCH


PATCH NAME
----------
Veritas File System 6.0.3 Public Hot Fix 3


OPERATING SYSTEMS SUPPORTED BY THE PATCH
----------------------------------------
RHEL6 x86-64


PACKAGES AFFECTED BY THE PATCH
------------------------------
VRTSodm
VRTSvxfs


BASE PRODUCT VERSIONS FOR THE PATCH
-----------------------------------
   * Veritas Storage Foundation for Oracle RAC 6.0.1
   * Veritas Storage Foundation Cluster File System 6.0.1
   * Veritas Storage Foundation 6.0.1
   * Veritas Storage Foundation High Availability 6.0.1
   * Symantec VirtualStore 6.0.1


SUMMARY OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
Patch ID: 6.0.300.300
* 3384781 (3384775) Installing patch 6.0.3.200 on RHEL 6.4  or earlier RHEL 6.* versions fails with ERROR: 
No appropriate modules found.
Patch ID: 6.0.300.200
* 3349650 (3349649) ODM modules fail to load on RHEL6.5
* 3349652 (3349651) VxFS modules fail to load on RHEL6.5
* 3356841 (2059611) Panic in vx_unlockmap() due to NULL ml_tranp.
* 3356845 (3331419) System panic because of kernel stack overflow.
* 3356892 (3259634) A Cluster File System having more than 4G blocks gets corrupted.
* 3356895 (3253210) File System hung, when it has reached the space limit.
* 3356909 (3335272) mkfs dumps core when logsize given is not aligned.
* 3357264 (3350804) System panic on RHEL6 setup due to kernel stack overflow corruption
* 3357278 (3340286) Persistent tunable setting of "dalloc_enable" gets reset to
default after file system resize.


DETAILS OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
This patch fixes the following Symantec incidents:

Patch ID: 6.0.300.300

* 3384781 (Tracking ID: 3384775)

SYMPTOM:
Installing patch 6.0.3.200 on RHEL 6.4  or earlier RHEL 6.* versions fails with ERROR: No appropriate modules 
found.
# /etc/init.d/vxfs start
ERROR: No appropriate modules found.
Error in loading module "vxfs". See documentation.
Failed to create /dev/vxportal
ERROR: Module fdd does not exist in /proc/modules
ERROR: Module vxportal does not exist in /proc/modules
ERROR: Module vxfs does not exist in /proc/modules

DESCRIPTION:
VRTSvxfs  and VRTSodm rpms ship four different set module for RHEL 6.1 and RHEL6.2 , RHEL 6.3 , RHEL6.4 
and RHEL 6.5 each.
However the current patch only contains the RHEL 6.5 module.  Hence installation on earlier RHEL 6.* version 
fail.

RESOLUTION:
A superseding patch 6.0.3.300 will be released to include all the modules for RHEL 6.*  versions 
which will be available on SORT for download.

Patch ID: 6.0.300.200

* 3349650 (Tracking ID: 3349649)

SYMPTOM:
ODM modules fail to load on RHEL6.5 and following error messages are
reported in system log.
kernel: vxodm: disagrees about version of symbol putname
kernel: vxodm: disagrees about version of symbol getname

DESCRIPTION:
In RHEL6.5 the kernel interfaces for getname and putname used by
VxFS have changed.

RESOLUTION:
Code modified to use latest definitions of getname and putname
kernel interfaces.

* 3349652 (Tracking ID: 3349651)

SYMPTOM:
VxFS modules fail to load on RHEL6.5 and following error messages are
reported in system log.
kernel: vxfs: disagrees about version of symbol putname
kernel: vxfs: disagrees about version of symbol getname

DESCRIPTION:
In RHEL6.5 the kernel interfaces for getname and putname used by
VxFS have changed.

RESOLUTION:
Code modified to use latest definitions of getname and putname
kernel interfaces.

* 3356841 (Tracking ID: 2059611)

SYMPTOM:
system panics because NULL tranp in vx_unlockmap().

DESCRIPTION:
vx_unlockmap is to unlock a map structure of file system. If the map is being
handled, we incremented the hold count. vx_unlockmap() attempts to check whether
this is an empty mlink doubly linked list while we have an async vx_mapiodone
routine which can change the link at unpredictable timing even though the hold
count is zero.

RESOLUTION:
evaluation order is changed inside vx_unlockmap(), such that
further evaluation can be skipped over when map hold count is zero.

* 3356845 (Tracking ID: 3331419)

SYMPTOM:
Machine panics with the following stack trace.

 #0 [ffff883ff8fdc110] machine_kexec at ffffffff81035c0b
 #1 [ffff883ff8fdc170] crash_kexec at ffffffff810c0dd2
 #2 [ffff883ff8fdc240] oops_end at ffffffff81511680
 #3 [ffff883ff8fdc270] no_context at ffffffff81046bfb
 #4 [ffff883ff8fdc2c0] __bad_area_nosemaphore at ffffffff81046e85
 #5 [ffff883ff8fdc310] bad_area at ffffffff81046fae
 #6 [ffff883ff8fdc340] __do_page_fault at ffffffff81047760
 #7 [ffff883ff8fdc460] do_page_fault at ffffffff815135ce
 #8 [ffff883ff8fdc490] page_fault at ffffffff81510985
    [exception RIP: print_context_stack+173]
    RIP: ffffffff8100f4dd  RSP: ffff883ff8fdc548  RFLAGS: 00010006
    RAX: 00000010ffffffff  RBX: ffff883ff8fdc6d0  RCX: 0000000000002755
    RDX: 0000000000000000  RSI: 0000000000000046  RDI: 0000000000000046
    RBP: ffff883ff8fdc5a8   R8: 000000000002072c   R9: 00000000fffffffb
    R10: 0000000000000001  R11: 000000000000000c  R12: ffff883ff8fdc648
    R13: ffff883ff8fdc000  R14: ffffffff81600460  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #9 [ffff883ff8fdc540] print_context_stack at ffffffff8100f4d1
#10 [ffff883ff8fdc5b0] dump_trace at ffffffff8100e4a0
#11 [ffff883ff8fdc650] show_trace_log_lvl at ffffffff8100f245
#12 [ffff883ff8fdc680] show_trace at ffffffff8100f275
#13 [ffff883ff8fdc690] dump_stack at ffffffff8150d3ca
#14 [ffff883ff8fdc6d0] warn_slowpath_common at ffffffff8106e2e7
#15 [ffff883ff8fdc710] warn_slowpath_null at ffffffff8106e33a
#16 [ffff883ff8fdc720] hrtick_start_fair at ffffffff810575eb
#17 [ffff883ff8fdc750] pick_next_task_fair at ffffffff81064a00
#18 [ffff883ff8fdc7a0] schedule at ffffffff8150d908
#19 [ffff883ff8fdc860] __cond_resched at ffffffff81064d6a
#20 [ffff883ff8fdc880] _cond_resched at ffffffff8150e550
#21 [ffff883ff8fdc890] vx_nalloc_getpage_lnx at ffffffffa041afd5 [vxfs]
#22 [ffff883ff8fdca80] vx_nalloc_getpage at ffffffffa03467a3 [vxfs]
#23 [ffff883ff8fdcbf0] vx_do_getpage at ffffffffa034816b [vxfs]
#24 [ffff883ff8fdcdd0] vx_do_read_ahead at ffffffffa03f705e [vxfs]
#25 [ffff883ff8fdceb0] vx_read_ahead at ffffffffa038ed8a [vxfs]
#26 [ffff883ff8fdcfc0] vx_do_getpage at ffffffffa0347732 [vxfs]
#27 [ffff883ff8fdd1a0] vx_getpage1 at ffffffffa034865d [vxfs]
#28 [ffff883ff8fdd2f0] vx_fault at ffffffffa03d4788 [vxfs]
#29 [ffff883ff8fdd400] __do_fault at ffffffff81143194
#30 [ffff883ff8fdd490] handle_pte_fault at ffffffff81143767
#31 [ffff883ff8fdd570] handle_mm_fault at ffffffff811443fa
#32 [ffff883ff8fdd5e0] __get_user_pages at ffffffff811445fa
#33 [ffff883ff8fdd670] get_user_pages at ffffffff81144999
#34 [ffff883ff8fdd690] vx_dio_physio at ffffffffa041d812 [vxfs]
#35 [ffff883ff8fdd800] vx_dio_rdwri at ffffffffa02ed08e [vxfs]
#36 [ffff883ff8fdda20] vx_write_direct at ffffffffa044f490 [vxfs]
#37 [ffff883ff8fddaf0] vx_write1 at ffffffffa04524bf [vxfs]
#38 [ffff883ff8fddc30] vx_write_common_slow at ffffffffa0453e4b [vxfs]
#39 [ffff883ff8fddd30] vx_write_common at ffffffffa0454ea8 [vxfs]
#40 [ffff883ff8fdde00] vx_write at ffffffffa03dc3ac [vxfs]
#41 [ffff883ff8fddef0] vfs_write at ffffffff81181078
#42 [ffff883ff8fddf30] sys_pwrite64 at ffffffff81181a32
#43 [ffff883ff8fddf80] system_call_fastpath at ffffffff8100b072

DESCRIPTION:
The panic is due to kernel referring to corrupted thread_info structure from the
scheduler, thread_info got corrupted by stack overflow. While doing direct I/O
write, user-space pages need to be pre-faulted using __get_user_pages() code
path. This code path is very deep can end up consuming lot of stack space.

RESOLUTION:
Reduced the kernel stack consumption by ~400-500 bytes in this code path by
making various changes in the way pre-faulting is done.

* 3356892 (Tracking ID: 3259634)

SYMPTOM:
A CFS that has more than 4 GB blocks is corrupted due to some file system 
metadata being zeroed out incorrectly. The blocks which get zeroed out may 
contain any metadata or file data and can be located anywhere on the disk. The 
problem occurs only with the following file system size and the FS block size 
combinations:

1kb block size and FS size > 4TB
2kb block size and FS size > 8TB
4kb block size and FS size > 16TB
8kb block size and FS size > 32TB

DESCRIPTION:
When a CFS is mounted for the first time on the secondary node, a per-node-
intent log is created. When the intent log is created, the blocks newly 
allocated to it are zeroed out. The start offset and the length to be cleared 
is passed to the block that clears the routine. Due to a miscalculation a wrong 
start offset is passed. This results in the disk content at that offset getting 
zeroed out incorrectly. This content can be file system metadata or file data. 
If it is the metadata, this corruption is detected when the metadata is 
accessed and the file system is marked for full fsck(1M).

RESOLUTION:
The code is modified so that the correct start offset is passed to the block 
that clears the routine.

* 3356895 (Tracking ID: 3253210)

SYMPTOM:
File System hung with the stacktrace:

vx_svar_sleep_unlock
default_wake_function
__wake_up
vx_event_wait
vx_extentalloc_handoff
vx_te_bmap_alloc
vx_bmap_alloc_typed
vx_bmap_alloc
vx_bmap
vx_exh_allocblk
vx_exh_splitbucket
vx_exh_split
vx_dopreamble
vx_rename_tran
vx_pd_rename

DESCRIPTION:
VxFS will use large directory hash for large directory when large directory 
hash is enabled thru tuning vx_dexh_sz. When renaming a file, a new directory 
entry will inserted to that hash table that can result in hash split. The hash 
split will fail the current transaction and retry after some housekeeping job 
is done. The job includes allocating more space for the hash table. However, 
VxFS doesn't check if the return value of the preamble job, thus, when there 
runs out of space, the rename transaction will be re-entered permanently 
without knowing if more space is allocated by preamble job.

RESOLUTION:
Code changed such that, it will exit looping if ENOSPC is hit from the preamble 
job.

* 3356909 (Tracking ID: 3335272)

SYMPTOM:
mkfs dumps core when logsize given is not aligned. Stack may look like as below :

(gdb) bt
#0  find_space ()
#1  place_extents ()
#2  fill_fset ()
#3  main ()
(gdb)

DESCRIPTION:
While creating the VxFS file system using mkfs, if logsize given is not properly
aligned, we may end up in doing miscalculations for placing the RCQ extents and
finding no place. It may lead to illegal memory access of AU bitmap and
resulting in core dump.

RESOLUTION:
Place the RCQ extents in the same AU where log extents are allocated, if there
is enough space left.

* 3357264 (Tracking ID: 3350804)

SYMPTOM:
On RHEL6 setups, VXFS can sometimes report system panic with error as Thread
overran stack, or stack corrupted.

DESCRIPTION:
On RHEL6, the low-stack memory allocations consume significant
memory, especially when system is under memory pressure and takes page allocator
route. This breaks our earlier assumptions of stack depth calculations.

RESOLUTION:
Added a check in case of RHEL6 before doing low-stack allocations for available
stack size, the various stack depth calculations have been re-tuned for each
distribution separately to minimize performance penalties.

* 3357278 (Tracking ID: 3340286)

SYMPTOM:
Persistent tunable setting of "dalloc_enable" gets reset to default 
after
file system resize.

DESCRIPTION:
File System resize operation triggers the file system reinitialization. While
reinitializing instead of retaining the old tunable value, default value was
getting reset.

RESOLUTION:
Fixed the code such that it will retain the old "dalloc_enable" tunable value.



INSTALLING THE PATCH
--------------------
#rpm -Uvh VRTSvxfs-6.0.300.300-RHEL6.x86_64.rpm

For VRTSodm:
Before installing the patch, the SF/SFHA/SFCFS/SFRAC stack have to be at the 6.0.3 level.
Please refer to this appnote at http://www.symantec.com/docs/TECH210620 for detailed instructions/dependencies before installing this patch.
RHEL6
# rpm -Uvh VRTSodm-6.0.300.300-RHEL6.x86_64.rpm


REMOVING THE PATCH
------------------
#rpm -e rpm_name


SPECIAL INSTRUCTIONS
--------------------
NONE


OTHERS
------
NONE



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