[dm-devel] git head multipathd core

[Christophe Varoqui]

Here is a tricky one.
Eyeballs wanted !

It happens upon :

# for i in 3 4 5 6;do for j in 1 2;do echo "scsi remove-single-device $i
0 0 $j">/proc/scsi/scsi;done;done
# multipathd -k"show paths"
# for i in 3 4 5 6;do for j in 1 2;do echo "scsi add-single-device $i 0
0 $j">/proc/scsi/scsi;done;done
# multipathd -k"show paths"
SEGV

(replace your HCIL in the above sample)

Here is the core backtrace :

(gdb) bt full
#0  0x00002aaaab37ca20 in strlen () from /lib/libc.so.6
No symbol table info available.
#1  0x00002aaaab34f158 in vfprintf () from /lib/libc.so.6
No symbol table info available.
#2  0x00002aaaab3546ba in printf () from /lib/libc.so.6
No symbol table info available.
#3  0x00000000004074fe in process_req (fd=3, inbuf=0x7fffffb8ec0b "show
paths") at uxclnt.c:62
        reply = 0x3004263f0 <Address 0x3004263f0 out of bounds>
        len = 140737483689696
#4  0x000000000040754f in uxclnt (inbuf=0x7fffffb8ec0b "show paths") at
uxclnt.c:80
        fd = 3
#5  0x0000000000406caa in main (argc=2, argv=0x7fffffb8cfb8) at
main.c:1648
        arg = 107
        err = 0

Regards,
cvaroqui