> > > Hi. > > There is a bug with handling of adaptec raid cards (in my case it is Adaptec > 3405) where kernel logs hundreds of "AAC: Host adapter dead -1" > messages. > > Bug was reported previously on lkml but there was no progres in solving it. > > There is also bugzilla entry: > https://bugzilla.kernel.org/show_bug.cgi?id=151661 > > I've bisected that to commit bellow and indeed, reverting it from kernel > 4.9.3 makes messages go away. > > Could anyone at microsemi look at this regression? > > Thanks
Hi Arkadiusz, Thanks for your effort in determining the cause of the issue. It makes sense now that the patch should have been included in controller specific code, rather than common code. I will prepare a patch for this, and if you are willing to test it, that would be great! Thanks, -Dave > > commit 78cbccd3bd683c295a44af8050797dc4a41376ff > Author: Raghava Aditya Renukunta > <raghavaaditya.renuku...@microsemi.com> > Date: Mon Apr 25 23:32:37 2016 -0700 > > aacraid: Fix for KDUMP driver hang > > When KDUMP is triggered the driver first talks to the firmware in INTX > mode, but the adapter firmware is still in MSIX mode. Therefore the > first > driver command hangs since the driver is waiting for an INTX response > and > firmware gives a MSIX response. If when the OS is installed on a RAID > drive created by the adapter KDUMP will hang since the driver does not > receive a response in sync mode. > > Fixed by: Change the firmware to INTX mode if it is in MSIX mode before > sending the first sync command. > > Cc: sta...@vger.kernel.org > Signed-off-by: Raghava Aditya Renukunta > <raghavaaditya.renuku...@microsemi.com> > Reviewed-by: Johannes Thumshirn <jthumsh...@suse.de> > Signed-off-by: Martin K. Petersen <martin.peter...@oracle.com> > > my hardware: > 02:0e.0 RAID bus controller [0104]: Adaptec AAC-RAID [9005:0285] > Subsystem: Adaptec 3405 [9005:02bb] > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- > ParErr- > Stepping+ SERR+ FastB2B- DisINTx- > Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 32 (250ns min, 250ns max), Cache Line Size: 4 bytes > Interrupt: pin A routed to IRQ 18 > Region 0: Memory at fba00000 (64-bit, non-prefetchable) [size=2M] > [virtual] Expansion ROM at fbc00000 [disabled] [size=256K] > Capabilities: [c0] Power Management version 2 > Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA > PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- > Capabilities: [d0] MSI: Enable- Count=1/2 Maskable- 64bit+ > Address: 0000000000000000 Data: 0000 > Capabilities: [e0] PCI-X non-bridge device > Command: DPERE- ERO- RBC=512 OST=4 > Status: Dev=02:0e.0 64bit+ 133MHz+ SCD- USC- DC=bridge > DMMRBC=1024 DMOST=4 DMCRS=16 RSCEM- 266MHz- 533MHz- > Kernel driver in use: aacraid > Kernel modules: aacraid > > [ 1.956009] Adaptec aacraid driver 1.2-1[41066]-ms > [ 2.164584] AAC0: kernel 5.2-0[17342] Aug 4 2010 > [ 2.164633] AAC0: monitor 5.2-0[17342] > [ 2.164676] AAC0: bios 5.2-0[17342] > [ 2.164719] AAC0: serial 7C46114103A > [ 2.164761] AAC0: Non-DASD support enabled. > [ 2.164804] AAC0: 64bit support enabled. > [ 2.164846] AAC0: 64 Bit DAC enabled > [ 2.177929] scsi host6: aacraid > > > -- > Arkadiusz Miśkiewicz, arekm / ( maven.pl | pld-linux.org )
