Bug ID: 6689239 minor number encode decode goes wrong for larger instance number leading to panic in mutex

Bug ID	6689239
Synopsis	minor number encode decode goes wrong for larger instance number leading to panic in mutex_exit
State	10-Fix Delivered (Fix available in build)
Category:Subcategory	kernel:driver-st
Keywords	rtiq_reviewed
Responsible Engineer	Larry Liu
Reported Against
Duplicate Of
Introduced In	solaris_nevada
Commit to Fix	snv_92
Fixed In	snv_92
Release Fixed	solaris_nevada(snv_92) , solaris_10u7(s10u7_04) (Bug ID:2163363)
Related Bugs	6607995 , 6791792
Submit Date	16-April-2008
Last Update Date	6-July-2009
Description	panic string: mutex_exit: not owner, lp=3000274e098 owner=0 thread=2a1001e5d20 unix:vpanic+0xcc(0x105e728, 0x2a1001e5358, 0x0, 0x783355e9, 0x0, 0x0) unix:panic+0x1c(0x105e728, 0x1414828, 0x3000274e098, 0x0, 0x2a1001e5d20, 0x0) unix:mutex_exit(0x3000274e098) - frame recycled st:st_ioctl_cmd+0x3ac(0xb02, 0x3000278c308, 0x1, 0x1, 0x1) st:st_gen_mode_sense+0x74(0x3000027e388, 0xf, 0x30001ae5480, 0x1c, 0x20202020, 0x0) st:st_modesense+0x58(0x3000027e388, , , 0x300027df7b8, 0x3000223605f, 0x300027df7a1) st:st_get_conf_from_tape_drive+0xd0(0x3000027e388, 0x30002236048, 0x30002740e40, 0x30002236049, 0x7, 0x3000270c390) st:st_known_tape_type+0x100(0x3000027e388, , 0x20, , , 0x0) st:st_attach+0x2a8(0x3000278f100, 0x0, , 0x0, 0x1, 0x0)
Work Around	Config the tape in st.conf instead of using tape self ID
Comments	N/A

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