--- /dev/null
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2019 Cray Inc. All Rights Reserved.
+Utility to display contents of a Lustre lu_object
+"""
+
+from pykdump.API import *
+from struct import *
+import argparse
+import os
+
+import lustrelib as ll
+from crashlib.input import toint
+
+description_short = "Prints contents of an lu_object"
+
+LOHA_EXISTS = 1 << 0
+
+LOV_MAGIC = 0x0BD10BD0
+LOV_MAGIC_V3 = 0x0BD30BD0
+
+DEPTH = 3
+RULER = "........................................"
+
+FID_SEQ_OST_MDT0 = 0
+FID_SEQ_LOV_DEFAULT = 0xffffffffffffffff
+FID_SEQ_IDIF = 0x100000000
+FID_SEQ_IDIF_MAX = 0x1ffffffff
+IDIF_OID_MAX_BITS = 48
+IDIF_OID_MASK = ((1 << IDIF_OID_MAX_BITS) -1)
+
+def lov_print_empty(obj, depth=0, ruler=RULER):
+ print "empty %d" % obj.lo_layout_invalid
+
+def lov_print_raid0(obj, depth=0, ruler=RULER):
+ r0 = None
+ lsm = obj.lo_lsm
+ try:
+ magic = lsm.lsm_magic
+ stripes = lsm.lsm_stripe_count
+ layout_gen = lsm.lsm_layout_gen
+ pattern = lsm.lsm_pattern
+ except Exception, e:
+ magic = lsm.lsm_wire.lw_magic
+ stripes = lsm.lsm_wire.lw_stripe_count
+ layout_gen = lsm.lsm_wire.lw_layout_gen
+ pattern = lsm.lsm_wire.lw_pattern
+ if magic==LOV_MAGIC or magic==LOV_MAGIC_V3:
+ r0 = obj.u.raid0
+ lli = readU32(Addr(obj) + member_offset('struct lov_object', 'lo_layout_invalid'))
+ invalid = "invalid" if lli else "valid"
+ if r0 and r0.lo_nr:
+ print "%*.*sstripes: %d, %s, lsm[0x%x 0x%X %d %d %d %d]:" % \
+ (depth, depth, ruler,
+ r0.lo_nr, invalid, Addr(lsm), magic,
+ lsm.lsm_refc.counter, stripes, layout_gen, pattern)
+ for i in range(r0.lo_nr):
+ los = r0.lo_sub[i]
+ if los:
+ sub = los.lso_cl.co_lu
+ lovsub_object_print(sub, depth+DEPTH, ruler)
+ else:
+ print "sub %d absent" % i
+
+def lov_print_released(obj, depth=0, ruler=RULER):
+ lsm = obj.lo_lsm
+ magic = lsm.lsm_magic
+ entries = lsm.lsm_entry_count
+ layout_gen = lsm.lsm_layout_gen
+ lli = readU32(Addr(obj) + member_offset('struct lov_object', 'lo_layout_invalid'))
+ invalid = "invalid" if lli else "valid"
+ if magic==LOV_MAGIC or magic==LOV_MAGIC_V3:
+ print "%*.*sreleased: %s, lov_stripe_md: 0x%x [0x%X %d %u %u]:" % \
+ (depth, depth, ruler,
+ invalid, Addr(lsm), magic, lsm.lsm_refc.counter,
+ entries, layout_gen)
+
+LOV_PRINT_TYPE = {
+ 0:lov_print_empty,
+ 1:lov_print_raid0,
+ 2:lov_print_released}
+
+def vvp_object_print(o, depth=0, ruler=RULER):
+ obj = readSU('struct vvp_object', Addr(o) - member_offset('struct vvp_object', 'vob_cl.co_lu'))
+ print "%*.*s(trans:%s mmap:%d) inode: 0x%x " % \
+ (depth, depth, ruler,
+ obj.vob_transient_pages.counter,
+ obj.vob_mmap_cnt.counter,
+ Addr(obj.vob_inode))
+
+def lod_object_print(o, depth=0, ruler=RULER):
+ obj = readSU('struct lod_object', Addr(o) - member_offset('struct lod_object', 'ldo_obj.do_lu'))
+ print "%*.*slod_object@0x%x" % (depth, depth, ruler, Addr(obj))
+
+def lov_object_print(o, depth=0, ruler=RULER):
+ obj = readSU('struct lov_object', Addr(o) - member_offset('struct lov_object', 'lo_cl.co_lu'))
+ type = obj.lo_type
+ LOV_PRINT_TYPE[type](obj, depth, ruler)
+
+def lovsub_object_print(o, depth=0, ruler=RULER):
+ obj = readSU('struct lovsub_object', Addr(o) - member_offset('struct lovsub_object', 'lso_cl.co_lu'))
+ print "%*.*slso_index: %d" % (depth, depth, ruler, obj.lso_index)
+
+def mdd_object_print(o, depth=0, ruler=RULER):
+ obj = readSU('struct mdd_object', Addr(o) - member_offset('struct mdd_object', 'mod_obj.mo_lu'))
+ print "%*.*smdd_object@0x%x(open_count=%d, valid=%x, cltime=%u, flags=%x)" % \
+ (depth, depth, ruler, Addr(obj), obj.mod_count, obj.mod_valid,
+ obj.mod_cltime, obj.mod_flags)
+
+def mdt_object_print(o, depth=0, ruler=RULER):
+ obj = readSU('struct mdt_object', Addr(o) - member_offset('struct mdt_object', 'mot_obj'))
+ print "%*.*smdt_object@0x%x(ioepoch=%u, flags=%x, epochcount=%d, writecount-%d" % \
+ (depth, depth, ruler, Addr(obj), obj.mot_ioepoch, obj.mot_flags,
+ obj.mot_ioepoch_count, obj.mot_writecount)
+
+def mgs_object_print(o, depth=0, ruler=RULER):
+ obj = readSU('struct mgs_object', Addr(o) - member_offset('struct mgs_object', 'mgo_obj.do_lu'))
+ print "%*.*smgs_object@0x%x" % (depth, depth, ruler, Addr(obj))
+
+def echo_object_print(o, depth=0, ruler=RULER):
+ clo = readSU('struct cl_object', Addr(o) - member_offset('struct cl_object', 'co_lu'))
+ obj = readSU('struct echo_object', Addr(clo) - member_offset('struct echo_object', 'eo_cl'))
+ print "%*.*sechocl_object@0x%x" % (depth, depth, ruler, Addr(obj))
+
+def ofd_object_print(o, depth=0, ruler=RULER):
+ print "%*.*sofd_object@0x%x" % (depth, depth, ruler, Addr(o))
+
+def osc_object_print(o, depth=0, ruler=RULER):
+ obj = readSU('struct osc_object', Addr(o) - member_offset('struct osc_object', 'oo_cl.co_lu'))
+ oinfo = obj.oo_oinfo
+ ar = oinfo.loi_ar
+ ostid = oinfo.loi_oi
+ ostid_seq = 0
+ ostid_id = 0
+ if ostid.oi.oi_seq == FID_SEQ_OST_MDT0:
+ ostid_seq = FID_SEQ_OST_MDT0
+ ostid_id = ostid.oi.oi_id & IDIF_OID_MASK
+ elif ostid.oi.oi_seq == FID_SEQ_LOV_DEFAULT:
+ ostid_seq = FID_SEQ_LOV_DEFAULT
+ ostid_id = ostid.oi.oi_id
+ elif ostid.oi_fid.f_seq >= FID_SEQ_IDIF and \
+ ostid.oi_fid.f_seq <= FID_SEQ_IDIF_MAX:
+ ostid_seq = FID_SEQ_OST_MDT0
+ ostid_id = ((0 << 48) | (ostid.oi_fid.f_seq & 0xffff << 32) | (ostid.oi_fid.f_oid))
+ else:
+ ostid_seq = ostid.oi_fid.f_seq
+ ostid_id = ostid.oi_fid.f_oid
+ print "%*.*sid: 0x%x:%u idx: %d gen: %d kms_valid: %u kms: %u rc: %d force_sync: %d min_xid: %u" % \
+ (depth, depth, ruler, ostid_seq, ostid_id,
+ oinfo.loi_ost_idx, oinfo.loi_ost_gen, oinfo.loi_kms_valid,
+ oinfo.loi_kms, ar.ar_rc, ar.ar_force_sync, ar.ar_min_xid)
+
+def osd_object_print(o, depth=0, ruler=RULER):
+ obj = readSU('struct osd_object', Addr(o) - member_offset('struct osd_object', 'oo_dt.do_lu'))
+ print "%*.*sosd_object@0x%x" % (depth, depth, ruler, Addr(obj))
+
+def osp_object_print(o, depth=0, ruler=RULER):
+ obj = readSU('struct osp_object', Addr(o) - member_offset('struct osp_object', 'opo_obj.do_lu'))
+ print "%*.*sosp_object@0x%x" % (depth, depth, ruler, Addr(o))
+
+OBJ_PRINT = {
+ "vvp":vvp_object_print,
+ "lod":lod_object_print,
+ "lov":lov_object_print,
+ "lovsub":lovsub_object_print,
+ "mdd":mdd_object_print,
+ "mdt":mdt_object_print,
+ "mgs":mgs_object_print,
+ "echo":echo_object_print,
+ "ofd":ofd_object_print,
+ "osc":osc_object_print,
+ "osd":osd_object_print,
+ "osp":osp_object_print}
+
+def print_object_from_name(name, obj, depth=0, ruler=RULER):
+ if OBJ_PRINT[name]:
+ OBJ_PRINT[name](obj, depth, ruler)
+
+def print_object(pos, depth=0, ruler=RULER):
+ print "%*.*s%s@0x%x" % (depth, depth, ruler, pos.lo_dev.ld_type.ldt_name, Addr(pos))
+ if (pos.lo_ops.loo_object_print):
+ print_object_from_name(pos.lo_dev.ld_type.ldt_name, pos, depth+DEPTH, ruler)
+
+def print_object_from_header(loh, depth=0, ruler=RULER):
+ head = loh.loh_layers
+ empty = "" if (loh.loh_lru.next == loh.loh_lru) else " lru"
+ exists = " exist" if loh.loh_attr & LOHA_EXISTS else ""
+ print "%*.*slu_object_header@0x%x[fl:0x%x, rc:%d, [0x%x:0x%x:0x%x]%s%s] {" % \
+ (depth, depth, ruler,
+ Addr(loh),
+ loh.loh_flags,
+ loh.loh_ref.counter,
+ loh.loh_fid.f_seq,
+ loh.loh_fid.f_oid,
+ loh.loh_fid.f_ver,
+ empty,
+ exists)
+ for obj in readSUListFromHead(head, 'lo_linkage', 'struct lu_object'):
+ print_object(obj, depth+DEPTH, ruler)
+ print "%*.*s} header@0x%x\n" % (depth, depth, ruler, Addr(loh))
+
+if __name__ == "__main__":
+ description = "Prints contents of an lu_object"
+ parser = argparse.ArgumentParser(description=description)
+ parser.add_argument("lu_object_header", default=False, type=toint,
+ help="address of an lu_object_header")
+
+ args = parser.parse_args()
+ loh = readSU('struct lu_object_header', args.lu_object_header)
+ print_object_from_header(loh)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff