[Dar-support] BUG in cache.cpp line 562

[Graham C. <g+...@co...>]

Hi,

DAR runs multiple backups for me overnight every day. This morning's log
included the bug report below. I have not even tried to reproduce it
yet, but just posting it in case it happens to be something known.

This is a Debian Testing system, though not up to date - dar package is
2.7.3-1. Nothing has been changed recently - this job has run every
night for many, many years (it is using DAR_automatic_backup.sh). In
this case, it has decided to delete 7 differentials and generate a new
differential. The new diff is probably going to be about 200GB against a
full backup of about 2.2TB.

Let me know if you want me to try to find out any more, before I upgrade
and see if I can reproduce it with the current version of dar (2.7.4-1
in Debian Testing).

Here is the output:

No terminal found for user interaction. All questions will be assumed a
negative answer (less destructive choice), which most of the time will
abort the program.
Final memory cleanup...
---- exception type = [BUG] ----------
[source]
	File cache.cpp line 562 : it seems to be a bug here
	stack dump :
/usr/lib/x86_64-linux-gnu/libdar64.so.6000(_ZN6libdar4EbugC1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEi+0x13d)
[0x7fad5c37be6d]
	stack dump : /usr/lib/x86_64-linux-gnu/libdar64.so.6000(+0x79121)
[0x7fad5c2b9121]
	stack dump :
/usr/lib/x86_64-linux-gnu/libdar64.so.6000(_ZN6libdar6escape18inherited_truncateERKNS_8limitintImEE+0x47)
[0x7fad5c383767]
	stack dump : /usr/lib/x86_64-linux-gnu/libdar64.so.6000(+0x163423)
[0x7fad5c3a3423]
	stack dump :
/usr/lib/x86_64-linux-gnu/libdar64.so.6000(_ZN6libdar17filtre_sauvegardeERKSt10shared_ptrINS_16user_interactionEERKNS_4maskES7_RKNS_15pile_descriptorERNS_9catalogueERKSB_RKNS_4pathEbbbbbRNS_10statisticsEbS7_S7_RKNS_8limitintImEEbSN_bbRKNS_14filesystem_idsENS_17comparison_fieldsEbbbSN_SN_SN_SN_RKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_bRKSt3setINS_10fsa_familyESt4lessIS11_ESaIS11_EESZ_bSN_S7_bbRKS10_ISX_S12_ISX_ESaISX_EENS_23modified_data_detectionERKNS_20delta_sig_block_sizeE+0xbfd)
[0x7fad5c3ad84d]
	stack dump :
/usr/lib/x86_64-linux-gnu/libdar64.so.6000(_ZN6libdar7archive9i_archive16op_create_in_subENS1_9operationERKNS_4pathERKSt10shared_ptrINS_8entrepotEEPNS_9catalogueEPKSB_bRKNS_4maskESH_RKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESP_bRKNS_11crit_actionEbbbbbbRKNS_8limitintImEEbNS_11compressionEmmSW_SW_SH_SP_NS_11crypto_algoERKNS_11secu_stringEjRKSt6vectorISN_SaISN_EES16_SH_SW_bSP_SW_bbbRKNS_14filesystem_idsENS_17comparison_fieldsEbbbSW_SP_SW_SW_bbbSW_SP_NS_9hash_algoESW_SP_SH_bRKSt3setINS_10fsa_familyESt4lessIS1D_ESaIS1D_EEmmbbSH_SW_bbRKS1C_ISN_S1E_ISN_ES13_ENS_23modified_data_detectionESW_S1B_RKNS_20delta_sig_block_sizeEPNS_10statisticsE+0xdd5)
[0x7fad5c3c46c5]
	stack dump :
/usr/lib/x86_64-linux-gnu/libdar64.so.6000(_ZN6libdar7archive9i_archive12op_create_inENS1_9operationERKNS_4pathERKSt10shared_ptrINS_8entrepotEEPS0_RKNS_4maskESE_RKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESM_bbbbbbbRKNS_8limitintImEEbNS_11compressionEmmSQ_SQ_SE_SM_NS_11crypto_algoERKNS_11secu_stringEjRKSt6vectorISK_SaISK_EES10_SE_SQ_bSM_SQ_bbbRKNS_14filesystem_idsENS_17comparison_fieldsEbbSQ_SM_SQ_SQ_bbSQ_SM_NS_9hash_algoESQ_SM_SE_bRKSt3setINS_10fsa_familyESt4lessIS17_ESaIS17_EEmmbbSE_SQ_bbRKS16_ISK_S18_ISK_ESX_ENS_23modified_data_detectionESQ_S15_RKNS_20delta_sig_block_sizeEPNS_10statisticsE+0xb06)
[0x7fad5c3c82f6]
	stack dump :
/usr/lib/x86_64-linux-gnu/libdar64.so.6000(_ZN6libdar7archive9i_archiveC2ERKSt10shared_ptrINS_16user_interactionEERKNS_4pathES9_RKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESH_RKNS_22archive_options_createEPNS_10statisticsE+0xc1b)
[0x7fad5c3c96eb]
	stack dump :
/usr/lib/x86_64-linux-gnu/libdar64.so.6000(_ZN6libdar7archiveC1ERKSt10shared_ptrINS_16user_interactionEERKNS_4pathES8_RKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESG_RKNS_22archive_options_createEPNS_10statisticsE+0x11f)
[0x7fad5c3287af]
	stack dump : dar(+0x48f72) [0x56150cad9f72]
	stack dump : dar(+0x4e090) [0x56150cadf090]
	stack dump : dar(+0x21731) [0x56150cab2731]
	stack dump : /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xcd)
[0x7fad5bdc37fd]
	stack dump : dar(+0x218aa) [0x56150cab28aa]
[most outside call]
-----------------------------------

INTERNAL ERROR, PLEASE REPORT THE PREVIOUS OUTPUT TO MAINTAINER
DARmedia: Sorry. 'dar' failed with exit code 3. DARmediaDiff01 backup
aborted.