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SubjectRe: [PATCH] scsi: megaraid_sas: fix kdump kernel boot hung caused by JBOD
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> when kernel crash, and kexec into kdump kernel, megaraid_sas will hung
> and print follow error logs
>
> 24.1485901 sd 0:0:G:0: [sda 1 tag809 BRCfl Debug mfi stat 0x2(1, data len requested/conpleted 0X100
> 0/0x0)]
> 24.1867171 sd 0:0:G :9: [sda I tag861 BRCfl Debug mfft stat 0x2d, data len reques ted/conp1e Led 0X100
> 0/0x0]
> 24.2054191 sd 0:O:6:O: [sda 1 tag861 FAILED Result: hustbyte=DIDGK drioerbyte-DRIUCR SENSE]
> 24.2549711 bik_update_ request ! 1/0 error , dev sda, sector 937782912 op 0x0:(READ) flags 0x0 phys_seg 1 prio class
> 21.2752791 buffer_io_error 2 callbacks suppressed
> 21.2752731 Duffer IO error an dev sda, logical block 117212064, async page read
>
> this bug is caused by commit '59db5a931bbe73f ("scsi: megaraid_sas:
> Handle sequence JBOD map failure at driver level ")' and can be fixed
> by not set JOB when reset_devices on

Broadcom: Please review.

Thanks!

--
Martin K. Petersen Oracle Linux Engineering

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