[Bugs] [Bug 1266079] tiering: rename of file causes brick process crash

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1266079



--- Comment #3 from Saravanakumar <sarumuga at redhat.com> ---
Hi Dan,
Observed another instance where a *promoted* file when RENAMED causes crash. 

Attaching the core file as well.
As per the core, loc->inode is NULL.
Please check.


[root at gfvm3 glusterfs]# gdb /usr/local/sbin/glusterfsd /core.17252 
GNU gdb (GDB) Fedora 7.8.1-30.fc21
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Reading symbols from /usr/local/sbin/glusterfsd...done.
[New LWP 18096]
[New LWP 17270]
[New LWP 17269]
[New LWP 17268]
[New LWP 17259]
[New LWP 17267]
[New LWP 17252]
[New LWP 17258]
[New LWP 17261]
[New LWP 17265]
[New LWP 19028]
[New LWP 17260]
[New LWP 17256]
[New LWP 17255]
[New LWP 17254]
[New LWP 17264]
[New LWP 17253]
[New LWP 17262]
[New LWP 17257]
[New LWP 17266]
[New LWP 17263]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/local/sbin/glusterfsd -s gfvm3 --volfile-id
tiervol.gfvm3.opt-volume_test-'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fcbc2f5415e in ctr_setxattr (frame=0x7fcb9400131c, 
    this=0x7fcbbc00bb70, loc=0x7fcbac008a8c, xattr=0x7fcbac00509c, flags=0, 
    xdata=0x0) at changetimerecorder.c:1043
1043            FILL_CTR_INODE_CONTEXT(_inode_cx, loc->inode->ia_type,
Missing separate debuginfos, use: debuginfo-install glibc-2.20-8.fc21.x86_64
keyutils-libs-1.5.9-4.fc21.x86_64 krb5-libs-1.12.2-9.fc21.x86_64
libacl-2.2.52-7.fc21.x86_64 libaio-0.3.110-4.fc21.x86_64
libattr-2.4.47-9.fc21.x86_64 libcom_err-1.42.11-4.fc21.x86_64
libgcc-4.9.2-1.fc21.x86_64 libselinux-2.3-5.fc21.x86_64
libuuid-2.25.2-2.fc21.x86_64 openssl-libs-1.0.1k-1.fc21.x86_64
pcre-8.35-8.fc21.x86_64 sqlite-3.8.8.3-1.fc21.x86_64
sssd-client-1.12.2-2.fc21.x86_64 xz-libs-5.1.2-14alpha.fc21.x86_64
zlib-1.2.8-7.fc21.x86_64
(gdb) bt
#0  0x00007fcbc2f5415e in ctr_setxattr (frame=0x7fcb9400131c, 
    this=0x7fcbbc00bb70, loc=0x7fcbac008a8c, xattr=0x7fcbac00509c, flags=0, 
    xdata=0x0) at changetimerecorder.c:1043
#1  0x00007fcbc285d9f8 in changelog_setxattr (frame=0x7fcb94000fdc, 
    this=0x7fcbbc00f220, loc=0x7fcbac008a8c, dict=0x7fcbac00509c, flags=0, 
    xdata=0x0) at changelog.c:1491
#2  0x00007fcbc2645700 in br_stub_setxattr (frame=0x7fcb94000fdc, 
    this=0x7fcbbc011010, loc=0x7fcbac008a8c, dict=0x7fcbac00509c, flags=0, 
    xdata=0x0) at bit-rot-stub.c:1191
#3  0x00007fcbc2438f0f in posix_acl_setxattr (frame=0x7fcb94001aec, 
    this=0x7fcbbc0125f0, loc=0x7fcbac008a8c, xattr=0x7fcbac00509c, flags=0, 
    xdata=0x0) at posix-acl.c:2026
#4  0x00007fcbd0ca1959 in default_setxattr (frame=0x7fcb94001aec, 
    this=0x7fcbbc013b50, loc=0x7fcbac008a8c, dict=0x7fcbac00509c, flags=0, 
    xdata=0x0) at defaults.c:1772
#5  0x00007fcbd0ca1959 in default_setxattr (frame=0x7fcb94001aec, 
    this=0x7fcbbc014f70, loc=0x7fcbac008a8c, dict=0x7fcbac00509c, flags=0, 
    xdata=0x0) at defaults.c:1772
#6  0x00007fcbd0c9c3b5 in default_setxattr_resume (frame=0x7fcbac00165c, 
    this=0x7fcbbc016570, loc=0x7fcbac008a8c, dict=0x7fcbac00509c, flags=0, 
    xdata=0x0) at defaults.c:1329
#7  0x00007fcbd0cbf779 in call_resume_wind (stub=0x7fcbac008a4c)
    at call-stub.c:2139
---Type <return> to continue, or q <return> to quit---q
Quit
(gdb) p loc
$1 = (loc_t *) 0x7fcbac008a8c
(gdb) p *loc
$2 = {path = 0x7fcbac007450 "/file999", name = 0x7fcbac007451 "file999", 
  inode = 0x0, parent = 0x7fcbbc07ef8c, 
  gfid = "\030\365\355[\202\aJ⻥\355\217\360Q\327w", 
  pargfid = '\000' <repeats 15 times>, "\001"}
(gdb) p _inode_ctx
No symbol "_inode_ctx" in current context.
(gdb) p _inode_cx
$3 = (gf_ctr_inode_context_t *) 0x7fcbaa7ebb30
(gdb) p (loc->inode)
$4 = (inode_t *) 0x0

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