Re: [developer] Error scsi_vhci

["Udo Grabowski (IMK)" <udo.grabowski@kit.edu>]

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On 19-11-2024 19:00, Udo Grabowski (IMK) wrote:
> On 19-11-2024 18:46, Udo Grabowski (IMK) wrote:
>> Hi,
>> for a while now, stmsboot drops the error message below, but after
>> reboot, it works fine. The message is actually caused by
>> /lib/mpxio/stmsboot_util -D mpt_sas -N, which spits out '|iport'
>> instead of 'iport', letting the search in /dev/dsk/* for it fail.
>> The consequence is that former automatic discovery for vhci-capable
>> disks fails and you have to revert to the failover list in
>> /kernel/drv/scsi_vhci.conf again. stmsboot_util is a compiled
>> executable.
>>
>> # stmsboot -e -D mpt_sas
>> WARNING: This operation will require a reboot.
>> Do you want to continue ? [y/n] (default: y) y
>> egrep: RE error in |iport: invalid regular expression  <===========
>> ...
> 
> 
> Looks like an oversight for an edge case:
> 
>   -N
> 385       *    same as the -n option, except that we only print the
> 386       *    node-name (dev_info :: devi_node_name). Multiple instances
> 387       *    through the libdevinfo snapshot are uniqified and separated
> 388       *    by the "|" character for direct use by egrep(1).
> 
> For only one item, there should be no "|" .
> 

This is the relevant section in  usr/src/cmd/stmsboot/stmsboot_util.c

1144  			if (cap_N_option) {
1145  				char *nodename = di_node_name(curnode);
1146  				/* nodename is never going to be null */
1147  				if (strstr(aliases, nodename) == NULL)
1148  					/* haven't seen this nodename before */
1149  					(void) snprintf(aliases,
1150  					    MAXPATHLEN + 1, "%s|%s",
1151  					    ((aliases != NULL) ? aliases : ""),
1152  					    nodename);
1153  			} else
1154  				(void) printf("%s\n", path);
-- 
Dr.Udo Grabowski  Inst.of Meteorology & Climate Research IMK-ASF-SAT
https://www.imk-asf.kit.edu/english/sat.php
KIT - Karlsruhe Institute of Technology          https://www.kit.edu
Postfach 3640,76021 Karlsruhe,Germany T:(+49)721 608-26026 F:-926026


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