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Since we are reading size as (double) we can get way bigger
number then just plain int64. So to make this check actually
more valid and usable do a maxsize compare in 'double'.
Avoid reading already released memory and do a continue directly.
Invalid read of size 1
at 0x1201B0: main_loop (clvmd.c:931)
by 0x11F640: main (clvmd.c:666)
Address 0x72ddef0 is 32 bytes inside a block of size 224 free'd
at 0x4C30D18: free (vg_replace_malloc.c:530)
by 0x54D6FD1: dm_free_wrapper (dbg_malloc.c:357)
by 0x122E6E: process_work_item (clvmd.c:2034)
by 0x123003: lvm_thread_fn (clvmd.c:2085)
by 0x590A3A8: start_thread (pthread_create.c:465)
by 0x5C3C7FE: clone (in /usr/lib64/libc-2.25.90.so)
Block was alloc'd at
at 0x4C2FB6B: malloc (vg_replace_malloc.c:299)
by 0x54D6EF1: dm_malloc_aux (dbg_malloc.c:286)
by 0x54D6F1C: dm_zalloc_aux (dbg_malloc.c:291)
by 0x54D6F96: dm_zalloc_wrapper (dbg_malloc.c:345)
by 0x11F89C: local_rendezvous_callback (clvmd.c:731)
by 0x1203D2: main_loop (clvmd.c:964)
by 0x11F640: main (clvmd.c:666)
Initialize mutex upfront any debugging and fix this report:
Mutex reinitialization: mutex 0x485d20, recursion count 0, owner 1.
at 0x4C38480: pthread_mutex_init_intercept (drd_pthread_intercepts.c:821)
by 0x4C38480: pthread_mutex_init (drd_pthread_intercepts.c:830)
by 0x11F359: main (clvmd.c:562)
mutex 0x485d20 was first observed at:
at 0x4C38F63: pthread_mutex_lock_intercept (drd_pthread_intercepts.c:885)
by 0x4C38F63: pthread_mutex_lock (drd_pthread_intercepts.c:898)
by 0x11E920: debuglog (clvmd.c:254)
by 0x11F1D8: main (clvmd.c:527)
Switch from warn to log_error since this generated
failing return code for command so printing log_error()
is mandatory.
Happens with i.e. pvscan --cache meets crashing lvmetad.
Commit 34504855a7 introduced
flag LV_RESHAPE_DATA_OFFSET and used it to avoid incompatible
activation on older runtime.
Enhance vg_validate() raid checking functions with checks for it.
Patch 72a58ce4b0 was wronly placing
double quotes around this variable which we want to pass expanded,
as it's just set of 'space' device args ATM.
TODO consider using array[@] to make this cleaner.
Add shellcheck directive to skip warning here
Changes:
- BASH_SOURCE index was one off.
- The first line of stacktrace was pure confusion displaying executed
script together with innermost line number (which was either 125 when
STACKTRACE or 229 when skip was called.)
- We can safely ignore innermost call, as stack trace is always produced
by stacktrace function.
- It is safer to test for array length, instead of testing FUNCNAME is
main - if main function were introduced.
- Bashishm is safe to use as this function as a whole is relying on bash.
In order to reject out of place reshaping with segment data_offset
field on old runtime, add a respective segment type incompatibility
flag causing "+RESHAPE_DATA_OFFSET" to be suffixed to the segment
type name.
When reshape space is allocated anew, an update and reload is needed to
promote the new size to the cluster node with the exclusively active RaidLV
or reloading the RaidLV will fail with a size related error. Additionally,
store "data_offset <sectors>" with the RaidLV in the lvm2 metadata so that
it can be retrieved on cluster nodes.
Process allocation of reshape space on a 2-legged raid4/5 (interim layout
to convert from/to linear via raid1) properly in the cluster.
Resolves: rhbz1461562
Resolves: rhbz1448116
Use 1 logic for 2 loops tearing down left device.
First loops tries to remove all closed devices with 'normal' remove.
Second loop tries to replace those left devices with 'error' target.
We can't really sleep that much in teardown as it slows test too much.
So do a nested loop (similar to 'dmsetup remove_all') and keep
removing devices with open count == 0 as long as it works.
When we want to squash as much device as possible,
it's better to give it some delay, so devices have
some time to release it's resouces for next removal.
Also drop surrounding cookie processing and let each
dmsetup call run on its own.
Add missing get_devs.
When $7 is not given use empty string.
See if we can live with less RAM disk for PVs.
Drop limitation on single core as presence 1.12 should address this.
The checking order here has happend after TESTDIR was removed
resulting in weird further error on trap path.
Properly check for unexpected dmeventd before removing TESTDIR
since 'trap' codepath is still using it.
Also try to kill this unexpected dmeventd so testing is
not skipping all next dmeventd tests.
(Downside would be - if user would be accidentally starting
dmeventd by some regular system admin work - such dmeventd
might be killd if it's unused. It can't kill dmeventd in-use.
