On Thu, Sep 07, 2023 at 09:17:15AM -0400, Joel Fernandes wrote: > Hi, > Just started seeing this on 6.5 stable. It is new and first occurrence: > > TREE04 no success message, 234 successful version messages > [033mWARNING: [mTREE04 GP HANG at 14 torture stat 2 > [ 38.371120] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g1253 > f0x0 ->state 0x2 cpu 6 > [ 38.388342] Call Trace: > [ 53.741039] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g3637 > f0x2 ->state 0x2 cpu 6 > [ 69.093462] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g5501 > f0x0 ->state 0x2 cpu 6 > [ 84.450028] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g10505 > f0x0 ->state 0x2 cpu 6 > [ 99.815871] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g13781 > f0x0 ->state 0x2 cpu 6 > [ 115.166476] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g16544 > f0x0 ->state 0x2 cpu 6 > [ 130.550116] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g18941 > f0x0 ->state 0x2 cpu 6 > [..] > > All logs: > http://box.joelfernandes.org:9080/job/rcutorture_stable/job/linux-6.5.y/17/artifact/tools/testing/selftests/rcutorture/res/2023.09.07-04.10.25/TREE04/ Huh. Does this happen for you in v6.5 mainline? Both the code under test (full-state polled grace periods) and the rcutorture test code are fairly new, so there is some reason for general suspicion. ;-) Thanx, Paul
