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Fixes: https://tracker.ceph.com/issues/75885
Signed-off-by: Md Mahamudur Rahaman Sajib <mahamudur.sajib@croit.io>

(cherry picked from commit a886d63)

Conflicts:
	src/include/cephfs/libcephfs.h
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sajibreadd force-pushed the wip-hostpapa-18.2.7-skip-error-low-level-apple branch from 8b4d778 to 8408f6a Compare April 7, 2026 17:21
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sajibreadd changed the base branch from reef-18.2.7 to wip-apple-base April 7, 2026 17:33
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sajibreadd force-pushed the wip-hostpapa-18.2.7-skip-error-low-level-apple branch from 9606c21 to 8e24178 Compare April 8, 2026 04:29
sajibreadd and others added 3 commits April 9, 2026 01:17
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sajibreadd force-pushed the wip-hostpapa-18.2.7-skip-error-low-level-apple branch 5 times, most recently from f4c27c3 to 69290b0 Compare April 14, 2026 05:53
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sajibreadd force-pushed the wip-hostpapa-18.2.7-skip-error-low-level-apple branch from 69290b0 to 41eded3 Compare April 14, 2026 10:49
sajibreadd pushed a commit that referenced this pull request Apr 30, 2026
rbd_features_from_string() uses boost::lexical_cast which throws
bad_lexical_cast when the input is not numeric. The exception is caught
and handled as "parse as feature name list instead".

This is normal control flow, but when ASAN's __cxa_throw interceptor is
misconfigured (e.g. with intercept_cxx_exceptions=0 leaving real___cxa_throw
NULL), any exception causes a CHECK failure. Even with a correctly configured
ASAN, throwing exceptions during config initialization adds overhead.

Replace the try/catch pattern with boost::conversion::try_lexical_convert,
which returns false on parse failure instead of throwing. This eliminates
the exception entirely, making the code more efficient and avoiding any
interaction with ASAN's exception interceptor.

The ASan report:

```
AddressSanitizer: CHECK failed: asan_interceptors.cpp:320 "((__interception::real___cxa_throw)) != (0)" (0x0, 0x0) (tid=30529)
    #0 0x7d668fac9a09 in CheckUnwind ../../../../src/libsanitizer/asan/asan_rtl.cpp:67
    #1 0x7d668faec105 in __sanitizer::CheckFailed(char const*, int, char const*, unsigned long long, unsigned long long) ../../../../src/libsanitizer/sanitizer_common/sanitizer_termination.cpp:86
    #2 0x7d668fa4b194 in __interceptor___cxa_throw ../../../../src/libsanitizer/asan/asan_interceptors.cpp:320
    #3 0x7d668ae4ec0f in void boost::throw_exception<boost::bad_lexical_cast>(boost::bad_lexical_cast const&) /opt/ceph/include/boost/throw_exception.hpp:165
    #4 0x7d668c1e1e0b in void boost::conversion::detail::throw_bad_cast<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, unsigned long>() /opt/ceph/include/boost/lexical_cast/bad_lexical_cast.hpp:93
    #5 0x7d668c1e0e05 in unsigned long boost::lexical_cast<unsigned long, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /opt/ceph/include/boost/lexical_cast.hpp:43
    #6 0x7d668c1df609 in librbd::rbd_features_from_string(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::ostream*) /ceph/src/librbd/Features.cc:67
    #7 0x7d668b255a35 in get_rbd_options()::$_2::operator()(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*) const src/common/options/rbd_options.cc:44
    ceph#8 0x7d668b255806 in int std::__invoke_impl<int, get_rbd_options()::$_2&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*>(std::__invoke_other, get_rbd_options()::$_2&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*&&) /usr/lib/gcc/x86_64-linux-gnu/12/../../../../include/c++/12/bits/invoke.h:61
    ceph#9 0x7d668b255754 in std::enable_if<is_invocable_r_v<int, get_rbd_options()::$_2&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*>, int>::type std::__invoke_r<int, get_rbd_options()::$_2&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*>(get_rbd_options()::$_2&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*&&) /usr/lib/gcc/x86_64-linux-gnu/12/../../../../include/c++/12/bits/invoke.h:114
    ceph#10 0x7d668b25563c in std::_Function_handler<int (std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*), get_rbd_options()::$_2>::_M_invoke(std::_Any_data const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*&&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*&&) /usr/lib/gcc/x86_64-linux-gnu/12/../../../../include/c++/12/bits/std_function.h:290
    ceph#11 0x7d668af924f1 in std::function<int (std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*)>::operator()(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*) const /usr/lib/gcc/x86_64-linux-gnu/12/../../../../include/c++/12/bits/std_function.h:591
    ceph#12 0x7d668af8c495 in Option::pre_validate(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*) const /ceph/src/common/options.cc:94
    ceph#13 0x7d668aef9ec3 in md_config_t::md_config_t(ConfigValues&, ConfigTracker const&, bool) /ceph/src/common/config.cc:208
    ceph#14 0x7d668ae0040d in ceph::common::ConfigProxy::ConfigProxy(bool) /ceph/src/common/config_proxy.h:70
    ceph#15 0x7d668adf3f5d in ceph::common::CephContext::CephContext(unsigned int, ceph::common::CephContext::create_options const&) /ceph/src/common/ceph_context.cc:730
    ceph#16 0x7d668adf3785 in ceph::common::CephContext::CephContext(unsigned int, code_environment_t, int) /ceph/src/common/ceph_context.cc:724
    ceph#17 0x7d668aef5ee6 in common_preinit(CephInitParameters const&, code_environment_t, int) /ceph/src/common/common_init.cc:40
    ceph#18 0x7d668d4a47af in rados_create_cct(char const*, CephInitParameters*) /ceph/src/librados/librados_c.cc:120
    ceph#19 0x7d668d4a49db in _rados_create2 /ceph/src/librados/librados_c.cc:168
    ceph#20 0x7d668d94dc4b in __pyx_pf_5rados_5Rados_2__setup /ceph/build/src/pybind/rados/rados_processed.c:13219
    ceph#21 0x7d668d94dc4b in __pyx_pw_5rados_5Rados_3__setup /ceph/build/src/pybind/rados/rados_processed.c:12703
    ceph#22 0x7d668d94a347 in __Pyx_CyFunction_CallAsMethod /ceph/build/src/pybind/rados/rados_processed.c:93157
    ceph#23 0x58ac5086d0ba in _PyObject_MakeTpCall (/usr/bin/python3.10+0x1810ba)
    ceph#24 0x58ac508843da  (/usr/bin/python3.10+0x1983da)
    ceph#25 0x58ac50885076 in PyVectorcall_Call (/usr/bin/python3.10+0x199076)
    ceph#26 0x7d668d94cdd7 in __Pyx_PyObject_Call /ceph/build/src/pybind/rados/rados_processed.c:90994
    ceph#27 0x7d668d94cdd7 in __pyx_pf_5rados_5Rados___init__ /ceph/build/src/pybind/rados/rados_processed.c:12474
    ceph#28 0x7d668d94cdd7 in __pyx_pw_5rados_5Rados_1__init__ /ceph/build/src/pybind/rados/rados_processed.c:12443
    ceph#29 0x58ac5086d43a  (/usr/bin/python3.10+0x18143a)
    ceph#30 0x58ac50884d3a in PyObject_Call (/usr/bin/python3.10+0x198d3a)
    ceph#31 0x58ac508637de in _PyEval_EvalFrameDefault (/usr/bin/python3.10+0x1777de)
    ceph#32 0x58ac5087702b in _PyFunction_Vectorcall (/usr/bin/python3.10+0x18b02b)
    ceph#33 0x58ac508615fe in _PyEval_EvalFrameDefault (/usr/bin/python3.10+0x1755fe)
    ceph#34 0x58ac5087702b in _PyFunction_Vectorcall (/usr/bin/python3.10+0x18b02b)
    ceph#35 0x58ac508615fe in _PyEval_EvalFrameDefault (/usr/bin/python3.10+0x1755fe)
```

Signed-off-by: Kefu Chai <k.chai@proxmox.com>
sajibreadd and others added 7 commits May 17, 2026 23:50
The lock cache is buggy and we need to disable it as a workaround.

Fixes: https://tracker.ceph.com/issues/65607
Signed-off-by: Xiubo Li <xiubli@redhat.com>
(cherry picked from commit a86ee49)

Conflicts:
	src/mds/MDSRank.cc
In case the current request has lock cache attached and then the
lock cache must have already acquired the wrlock of filelock. So
currently the path_traverse() will acquire the wrlock twice and
possibly caused deadlock by itself.

Fixes: https://tracker.ceph.com/issues/65607
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Sunnatillo <sunnat.samadov@est.tech>
(cherry picked from commit 276b81a)

Conflicts:
	src/mds/MDSRank.cc
If there are trailing newlines in a string (like long_desc), then the generated
C++ code is invalid (because the newline will not be escaped).

Signed-off-by: Patrick Donnelly <pdonnell@ibm.com>
(cherry picked from commit 73792b7)
A getattr/lookup can cause a wrlock or xlock to become unstable after a request
(like rename) acquires it but before early reply. The MDS will not nudge the
log in this situation and the getattr/lookup will need to wait for the eventual
journal flush before the lock is released.

Now looks like:

    2025-06-27T19:41:32.043+0000 7f11d21a9640  5 mds.0.log _submit_thread 25185408~2845 : EUpdate rename [metablob 0x1, 3 dirs]
    2025-06-27T19:41:32.043+0000 7f11d99b8640  1 -- [v2:172.21.10.4:6868/56297870,v1:172.21.10.4:6869/56297870] --> [v2:172.21.10.4:6818/999439823,v1:172.21.10.4:6819/999439823] -- osd_op(unknown.0.23:135 2.e 2:7bf7e7b5:::200.00000006:head [write 19584~2865 [fadvise_dontneed] in=2865b] snapc 0=[] ondisk+write+known_if_redirected+full_force+supports_pool_eio e72) -- 0x563e9b730000 con 0x563e9a674800
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log NO (dn xlock x=1 by request(client.4393:20702 nref=6 cr=0x563e9b83ae00)) on [dentry #0x1/a/file [2,head] auth (dn xlock x=1 by request(client.4393:20702 nref=6 cr=0x563e9b83ae00)) (dversion lock w=1 last_client=4393) pv=14558 v=14556 ap=2 ino=0x10000000002 remote_ino=0x0 referent_inode_ptr=(nil) referent_ino=0x0 state=1610612736 | request=1 lock=2 inodepin=1 dirty=1 waiter=0 authpin=1 0x563e95629900]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log NO (dn xlock x=1 by request(client.4393:20702 nref=6 cr=0x563e9b83ae00)) on [dentry #0x1/b/file [2,head] auth NULL (dn xlock x=1 by request(client.4393:20702 nref=6 cr=0x563e9b83ae00)) (dversion lock w=1 last_client=4393) pv=14557 v=14555 ap=2 ino=(nil) remote_ino=0x0 referent_inode_ptr=(nil) referent_ino=0x0 state=1610612736 | request=1 lock=2 inodepin=0 dirty=1 waiter=0 authpin=1 0x563e95629b80]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log NO (dversion lock w=1 last_client=4393) on [dentry #0x1/a/file [2,head] auth (dn xlock x=1 by request(client.4393:20702 nref=6 cr=0x563e9b83ae00)) (dversion lock w=1 last_client=4393) pv=14558 v=14556 ap=2 ino=0x10000000002 remote_ino=0x0 referent_inode_ptr=(nil) referent_ino=0x0 state=1610612736 | request=1 lock=2 inodepin=1 dirty=1 waiter=0 authpin=1 0x563e95629900]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log NO (dversion lock w=1 last_client=4393) on [dentry #0x1/b/file [2,head] auth NULL (dn xlock x=1 by request(client.4393:20702 nref=6 cr=0x563e9b83ae00)) (dversion lock w=1 last_client=4393) pv=14557 v=14555 ap=2 ino=(nil) remote_ino=0x0 referent_inode_ptr=(nil) referent_ino=0x0 state=1610612736 | request=1 lock=2 inodepin=0 dirty=1 waiter=0 authpin=1 0x563e95629b80]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log NO (ifile excl w=1) on [inode 0x10000000001 [...2,head] /b/ auth v29159 pv29165 ap=1 DIRTYPARENT f(v0 m2025-06-27T19:41:32.017971+0000) n(v0 rc2025-06-27T19:41:32.017971+0000 1=0+1) (isnap sync r=1) (inest lock w=1) (ifile excl w=1) (iversion lock w=1 last_client=4393) caps={4393=pAsLsXsFsx/-@955},l=4393 | request=0 lock=4 dirfrag=1 caps=1 dirtyparent=1 dirty=1 authpin=1 0x563e9a6f5080]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log NO (inest lock w=1 dirty) on [inode 0x1 [...2,head] / auth v179 snaprealm=0x563e9a6ce6c0 f(v0 m2025-06-27T19:09:29.187695+0000 2=0+2) n(v45 rc2025-06-27T19:41:31.249722+0000 3=0+3)/n(v0 rc2025-06-27T19:08:43.024940+0000 1=0+1) (isnap sync r=2) (inest lock w=1 dirty) caps={4359=pAsLsXsFs/-@83,4393=pAsLsXsFs/-@1245} | dirtyscattered=1 request=0 lock=2 dirfrag=1 caps=1 openingsnapparents=0 dirty=1 authpin=0 0x563e9a6f4b00]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log NO (inest lock w=1) on [inode 0x10000000001 [...2,head] /b/ auth v29159 pv29165 ap=1 DIRTYPARENT f(v0 m2025-06-27T19:41:32.017971+0000) n(v0 rc2025-06-27T19:41:32.017971+0000 1=0+1) (isnap sync r=1) (inest lock w=1) (ifile excl w=1) (iversion lock w=1 last_client=4393) caps={4393=pAsLsXsFsx/-@955},l=4393 | request=0 lock=4 dirfrag=1 caps=1 dirtyparent=1 dirty=1 authpin=1 0x563e9a6f5080]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log NO (iquiesce lock w=1 last_client=4393) on [inode 0x10000000000 [...2,head] /a/ auth v29161 pv29163 ap=3 DIRTYPARENT f(v0 m2025-06-27T19:41:32.017971+0000 1=1+0) n(v0 rc2025-06-27T19:41:32.017971+0000 2=1+1) (isnap sync r=2) (inest lock w=1) (ifile lock->sync w=1) (iversion lock w=1 last_client=4393) (iquiesce lock w=1 last_client=4393) caps={4359=pAsLsXs/-@109,4393=pAsLsXs/-@955} | request=1 lock=5 dirfrag=1 caps=1 dirtyparent=1 dirty=1 waiter=1 authpin=1 0x563e9a6f5600]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log NO (isnap sync r=1) on [inode 0x10000000001 [...2,head] /b/ auth v29159 pv29165 ap=1 DIRTYPARENT f(v0 m2025-06-27T19:41:32.017971+0000) n(v0 rc2025-06-27T19:41:32.017971+0000 1=0+1) (isnap sync r=1) (inest lock w=1) (ifile excl w=1) (iversion lock w=1 last_client=4393) caps={4393=pAsLsXsFsx/-@955},l=4393 | request=0 lock=4 dirfrag=1 caps=1 dirtyparent=1 dirty=1 authpin=1 0x563e9a6f5080]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log NO (isnap sync r=2) on [inode 0x1 [...2,head] / auth v179 snaprealm=0x563e9a6ce6c0 f(v0 m2025-06-27T19:09:29.187695+0000 2=0+2) n(v45 rc2025-06-27T19:41:31.249722+0000 3=0+3)/n(v0 rc2025-06-27T19:08:43.024940+0000 1=0+1) (isnap sync r=2) (inest lock w=1 dirty) caps={4359=pAsLsXsFs/-@83,4393=pAsLsXsFs/-@1245} | dirtyscattered=1 request=0 lock=2 dirfrag=1 caps=1 openingsnapparents=0 dirty=1 authpin=0 0x563e9a6f4b00]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log NO (iversion lock w=1 last_client=4393) on [inode 0x10000000000 [...2,head] /a/ auth v29161 pv29163 ap=3 DIRTYPARENT f(v0 m2025-06-27T19:41:32.017971+0000 1=1+0) n(v0 rc2025-06-27T19:41:32.017971+0000 2=1+1) (isnap sync r=2) (inest lock w=1) (ifile lock->sync w=1) (iversion lock w=1 last_client=4393) (iquiesce lock w=1 last_client=4393) caps={4359=pAsLsXs/-@109,4393=pAsLsXs/-@955} | request=1 lock=5 dirfrag=1 caps=1 dirtyparent=1 dirty=1 waiter=1 authpin=1 0x563e9a6f5600]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log NO (iversion lock w=1 last_client=4393) on [inode 0x10000000001 [...2,head] /b/ auth v29159 pv29165 ap=1 DIRTYPARENT f(v0 m2025-06-27T19:41:32.017971+0000) n(v0 rc2025-06-27T19:41:32.017971+0000 1=0+1) (isnap sync r=1) (inest lock w=1) (ifile excl w=1) (iversion lock w=1 last_client=4393) caps={4393=pAsLsXsFsx/-@955},l=4393 | request=0 lock=4 dirfrag=1 caps=1 dirtyparent=1 dirty=1 authpin=1 0x563e9a6f5080]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 10 mds.0.locker nudge_log YES (ifile lock->sync w=1) on [inode 0x10000000000 [...2,head] /a/ auth v29161 pv29163 ap=3 DIRTYPARENT f(v0 m2025-06-27T19:41:32.017971+0000 1=1+0) n(v0 rc2025-06-27T19:41:32.017971+0000 2=1+1) (isnap sync r=2) (inest lock w=1) (ifile lock->sync w=1) (iversion lock w=1 last_client=4393) (iquiesce lock w=1 last_client=4393) caps={4359=pAsLsXs/-@109,4393=pAsLsXs/-@955} | request=1 lock=5 dirfrag=1 caps=1 dirtyparent=1 dirty=1 waiter=1 authpin=1 0x563e9a6f5600]
    2025-06-27T19:41:32.043+0000 7f11d99b8640 20 mds.0.locker : request(client.4393:20702 nref=5 cr=0x563e9b83ae00)
    2025-06-27T19:41:32.043+0000 7f11d99b8640 20 mds.0.log _submit_entry EUpdate rename [metablob 0x1, 3 dirs]

Easily reproducible with two ceph-fuse clients. One session doing:

    $ mkdir a b
    $ touch a/file
    $ while true; do mv -v a/file b/file; mv -v b/file a/file; done

and the other

    $ while true; do stat a/file; done

You can observe the rename/stat stalls (up to 5 seconds; MDS tick interval) without this patch.

Fixes: https://tracker.ceph.com/issues/71876
Signed-off-by: Patrick Donnelly <pdonnell@ibm.com>
(cherry picked from commit db5c9dc)

Conflicts:
	src/mds/Locker.h
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