Issues

• [BUG] A load that fails with a bus error is always reported as Hardware Error (mcause=19) instead of Load Access Fault (mcause=5)

  Type:Bug
  openhwfoundation/cva6#3682 · Filter by author kaci1928 opened on Oct 30, 2026

• [BUG] cva6_ptw never checks the data_error flag: a bus error during a page-table walk is reported as a page fault instead of an access fault

  Component:RTLPARAM:MMUStatus:NewType:Bug
  openhwfoundation/cva6#3681 · Filter by author kaci1928 opened on Oct 30, 2026

• Does a failed SC to a vacant physical address need to pass memory permission checks?

  Component:RTLStatus:NewType:Bug
  openhwfoundation/cva6#3680 · Filter by author kaci1928 opened on Oct 30, 2026

• [BUG] axi2apb_64_32 drops APB slave errors and returns AXI OKAY

  Component:APUStatus:NewType:Bug
  openhwfoundation/cva6#3679 · Filter by author kaci1928 opened on Oct 30, 2026
  2

• [BUG] SPI/Ethernet: Loads from 0x2000_0000 or 0x3000_0000 unexpectedly terminate the simulation

  Component:APUStatus:NewType:Bug
  openhwfoundation/cva6#3676 · Filter by author AllinLeeYL opened on Oct 27, 2026

• [BUG] Sdtrig: mcontrol6 match=2 (ge) and match=3 (lt) compare in the wrong direction

  Component:RTLStatus:NewType:Bug
  openhwfoundation/cva6#3673 · Filter by author akashlevy opened on Oct 26, 2026

• [BUG] load_unit: phantom writeback with trans_id=0 corrupts unrelated in-flight instruction

  Component:RTLnotCV32A65XPARAM:FPUStatus:New
  openhwfoundation/cva6#3663 · Filter by author kaci1928 opened on Oct 23, 2026
  1

• [BUG] RVFI: interrupt bit tested as ex_commit_cause[31] — interrupts misreported as synchronous exceptions on RV64

  Component:RTLPARAM:RVFIStatus:New
  openhwfoundation/cva6#3659 · Filter by author kaci1928 opened on Oct 22, 2026
  1

• [BUG] Loads to non-existent physical addresses retire with error-slave fill data instead of trapping: AXI error responses silently dropped in WT/STD cache paths

  Component:RTLStatus:NewType:Bug
  openhwfoundation/cva6#3656 · Filter by author kaci1928 opened on Oct 21, 2026
  3

• [BUG] VU-mode WFI incorrectly raises a virtual-instruction exception when mstatus.TW=1

  Component:RTLnotCV32A65XStatus:NewType:Bug
  openhwfoundation/cva6#3652 · Filter by author huntersubmit opened on Oct 20, 2026

• [BUG] Interrupt still taken after csrc mip or csrs mideleg removes it

  Component:RTLStatus:NewType:Bug
  openhwfoundation/cva6#3651 · Filter by author CacheGuruinthemaking opened on Oct 19, 2026
  2

• [BUG] RVFI: CONNECT_RVFI_FULL zero-extension bug pollutes reported values of narrow CSRs (e.g. pmpaddr)

  Component:RTLPARAM:RVFIStatus:In ProgressType:Bug
  openhwfoundation/cva6#3648 · Filter by author kaci1928 opened on Oct 19, 2026
  2

  

• [BUG] icount action=0 reports an apparent stale mepc when armed with count=1

  Component:RTLStatus:NewType:Bug
  openhwfoundation/cva6#3647 · Filter by author qinkejiu opened on Oct 19, 2026

• [BUG] itrigger action=0 breakpoint is delivered after interrupt-handler return

  Component:RTLStatus:NewType:Bug
  openhwfoundation/cva6#3646 · Filter by author qinkejiu opened on Oct 19, 2026

• [BUG] VU access to an unimplemented Supervisor CSR raises virtual instruction instead of illegal instruction

  Component:RTLStatus:NewType:Bug
  openhwfoundation/cva6#3642 · Filter by author huntersubmit opened on Oct 19, 2026

• [BUG] Vector memory accesses bypass MPRV-based address translation

  Component:RTLnotCV32A65XStatus:NewType:Bug
  openhwfoundation/cva6#3641 · Filter by author 90ICEDA opened on Oct 18, 2026

• [BUG] HLVX that hits in the DTLB skips the execute-permission check

  Component:RTLPARAM:MMUStatus:NewType:Bug
  openhwfoundation/cva6#3640 · Filter by author i3abghany opened on Oct 17, 2026

• [BUG] mstatus.SD stays clear when mstatus.VS is Dirty

  Component:RTLnotCV32A65XStatus:NewType:Bug
  openhwfoundation/cva6#3637 · Filter by author huntersubmit opened on Oct 16, 2026

• [BUG] Writable hstatus.VSBE does not affect VS-mode store byte order

  Component:RTLStatus:NewType:Bug
  openhwfoundation/cva6#3636 · Filter by author huntersubmit opened on Oct 15, 2026

• [BUG] HPDcache AMOs treat big-endian byte-lane encodings as little-endian integers

  Component:RTLPARAM:AMOStatus:NewType:Bug
  openhwfoundation/cva6#3635 · Filter by author huntersubmit opened on Oct 15, 2026

• [BUG] CVA6 deadlocks after a cm.mvsa01 whose two micro-ops land in the last and the first scoreboard entries

  Component:RTLStatus:In ProgressType:Bug
  openhwfoundation/cva6#3625 · Filter by author pointerliu opened on Oct 12, 2026
  3

  

• [BUG] Sdtrig: Debug Mode entry caused by a trigger firing with action=1 reports dcsr.cause = 3 (haltreq) instead of 2 (trigger)

  Component:RTLStatus:NewType:Bug
  openhwfoundation/cva6#3624 · Filter by author pointerliu opened on Oct 12, 2026

• [BUG] Sdtrig: a trigger enabled in S/HS-mode only (s=1, vs=0) incorrectly matches in VS-mode and causes a breakpoint exception

  Component:RTLStatus:NewType:Bug
  openhwfoundation/cva6#3623 · Filter by author pointerliu opened on Oct 12, 2026

• [BUG] Sdtrig: tdata1 writes do not legalize dmode and action

  Component:RTLStatus:NewType:Bug
  openhwfoundation/cva6#3622 · Filter by author pointerliu opened on Oct 11, 2026

• [BUG] Sdtrig etrigger fires on an interrupt trap

  Type:Bug
  openhwfoundation/cva6#3620 · Filter by author pointerliu opened on Oct 11, 2026