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authorPau Espin Pedrol <pespin@sysmocom.de>2019-11-08 18:50:25 +0100
committerPau Espin Pedrol <pespin@sysmocom.de>2019-11-08 18:50:29 +0100
commitde80976d94ca0f38651dcdc6c337d53e7f2ee04a (patch)
treecf04130a34faa27b03d6fc2ef8b83e2c55654b95 /openbsc/src/libvlr
parent284314ab0a3ff64db0ebd42f9f05ae60c60bf6c0 (diff)
gmm: Fix assertion hit during RA UPD REQ before completting gmm attachHEADmaster
Output: 20191107021548500 DMM <0002> gprs_gb.c:40 MM_STATE_Gb(2596296189)[0x6120000084a0]{Idle}: Received Event E_MM_PDU_RECEPTION 20191107021548500 DMM <0002> gprs_gmm.c:1531 MM(/d4b6d7af) -> GMM RA UPDATE REQUEST type="RA updating" 20191107021548501 DMM <0002> gprs_gmm.c:1615 MM(/d4b6d7af) The MM context cannot be used, RA: 901-70-2758-208 Assert failed mmctx->gb.llme == NULL gprs_gmm.c:1620 Scenario reproducing the crash can be triggered with TTCN3 SGSN_Tests.TC_attach_req_id_req_ra_update. Basically, SGSN first receives an ATTACH REQ with a given RA ID, then SGSN switches to state CommonProcedureInitiated and sends GMM ID REQ, and MS/PCU answers immediatelly with a RA Update instead with a new RA ID. Related: OS#3957, OS#4245 Change-Id: I64fa5cf1b427d3abb99e553e584897261a827ce6
Diffstat (limited to 'openbsc/src/libvlr')
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