On 05.11.2016 14:29, James Bottomley wrote: ... > Kashyap Desai (1): > scsi: megaraid_sas: Fix data integrity failure for JBOD (passthrough) devices > > diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c > index 9ff57de..d8b1fbd 100644 > --- a/drivers/scsi/megaraid/megaraid_sas_base.c > +++ b/drivers/scsi/megaraid/megaraid_sas_base.c > @@ -1700,16 +1700,13 @@ megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) > goto out_done; > } > > - switch (scmd->cmnd[0]) { > - case SYNCHRONIZE_CACHE: > - /* > - * FW takes care of flush cache on its own > - * No need to send it down > - */ > + /* > + * FW takes care of flush cache on its own for Virtual Disk. > + * No need to send it down for VD. For JBOD send SYNCHRONIZE_CACHE to FW. > + */ > + if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) && MEGASAS_IS_LOGICAL(scmd)) { > scmd->result = DID_OK << 16; > goto out_done; > - default: > - break; > } > > return instance->instancet->build_and_issue_cmd(instance, scmd); This patch breaks my box.. I'm not able to boot it anymore. It seems with this patch I have /dev/sda[a-z] to /dev/sdz[a-z] ?!? I'm not sure how to get an log since dracut times out and I'm dropped , after a very long time of probing 'ghost devices', in a emercency shell, journalctl doesn't work also.. After reverting this one I can boot normal. Box is a FUJITSU PRIMERGY TX200 S5.. This is from an working kernel.. [ 5.119371] megaraid_sas 0000:01:00.0: FW now in Ready state [ 5.119418] megaraid_sas 0000:01:00.0: firmware supports msix : (0) [ 5.119420] megaraid_sas 0000:01:00.0: current msix/online cpus : (1/16) [ 5.119422] megaraid_sas 0000:01:00.0: RDPQ mode : (disabled) [ 5.123100] ehci-pci 0000:00:1a.7: cache line size of 32 is not supported [ 5.123113] ehci-pci 0000:00:1a.7: irq 18, io mem 0xb0020000 ... [ 5.208063] megaraid_sas 0000:01:00.0: controller type : MR(256MB) [ 5.208065] megaraid_sas 0000:01:00.0: Online Controller Reset(OCR) : Enabled [ 5.208067] megaraid_sas 0000:01:00.0: Secure JBOD support : No [ 5.208070] megaraid_sas 0000:01:00.0: megasas_init_mfi: fw_support_ieee=0 [ 5.208073] megaraid_sas 0000:01:00.0: INIT adapter done [ 5.208075] megaraid_sas 0000:01:00.0: Jbod map is not supported megasas_setup_jbod_map 4967 [ 5.230163] megaraid_sas 0000:01:00.0: MR_DCMD_PD_LIST_QUERY failed/not supported by firmware [ 5.252080] megaraid_sas 0000:01:00.0: DCMD not supported by firmware - megasas_ld_list_query 4369 [ 5.274086] megaraid_sas 0000:01:00.0: pci id : (0x1000)/(0x0060)/(0x1734)/(0x10f9) [ 5.274089] megaraid_sas 0000:01:00.0: unevenspan support : no [ 5.274090] megaraid_sas 0000:01:00.0: firmware crash dump : no [ 5.274092] megaraid_sas 0000:01:00.0: jbod sync map : no [ 5.274094] scsi host0: Avago SAS based MegaRAID driver [ 5.280022] scsi 0:0:6:0: Direct-Access ATA WDC WD5002ABYS-5 3B06 PQ: 0 ANSI: 5 [ 5.282153] scsi 0:0:7:0: Direct-Access ATA WDC WD5002ABYS-5 3B06 PQ: 0 ANSI: 5 [ 5.285180] scsi 0:0:10:0: Direct-Access ATA ST500NM0011 FTM6 PQ: 0 ANSI: 5 [ 5.369885] scsi 0:2:0:0: Direct-Access LSI MegaRAID SAS RMB 1.40 PQ: 0 ANSI: 5 .. Please let me know if you need more infos and/or want me to test patches. Best Regards, Gabriel C -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html