We met the gdb vmallocinfo issue as following. (gdb) lx-vmallocinfo Python Exception <class 'gdb.error'>: No symbol "vmap_area_list" in current context. Error occurred in Python: No symbol "vmap_area_list" in current context. Since Mitigate a vmap lock contention patchset [1], we remove the vmap_area_list. We need to use vmap_nodes to iterate all vmallocinfo. [1] https://lore.kernel.org/linux-mm/20240102184633.748113-1-urezki@xxxxxxxxx/ Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@xxxxxxxxxxxx> Cc: Casper Li <casper.li@xxxxxxxxxxxx> --- scripts/gdb/linux/vmalloc.py | 56 +++++++++++++++++++----------------- 1 file changed, 29 insertions(+), 27 deletions(-) diff --git a/scripts/gdb/linux/vmalloc.py b/scripts/gdb/linux/vmalloc.py index d3c8a0274d1e..803f17371052 100644 --- a/scripts/gdb/linux/vmalloc.py +++ b/scripts/gdb/linux/vmalloc.py @@ -29,32 +29,34 @@ class LxVmallocInfo(gdb.Command): if not constants.LX_CONFIG_MMU: raise gdb.GdbError("Requires MMU support") - vmap_area_list = gdb.parse_and_eval('vmap_area_list') - for vmap_area in lists.list_for_each_entry(vmap_area_list, vmap_area_ptr_type, "list"): - if not vmap_area['vm']: - gdb.write("0x%x-0x%x %10d vm_map_ram\n" % (vmap_area['va_start'], vmap_area['va_end'], - vmap_area['va_end'] - vmap_area['va_start'])) - continue - v = vmap_area['vm'] - gdb.write("0x%x-0x%x %10d" % (v['addr'], v['addr'] + v['size'], v['size'])) - if v['caller']: - gdb.write(" %s" % str(v['caller']).split(' ')[-1]) - if v['nr_pages']: - gdb.write(" pages=%d" % v['nr_pages']) - if v['phys_addr']: - gdb.write(" phys=0x%x" % v['phys_addr']) - if v['flags'] & constants.LX_VM_IOREMAP: - gdb.write(" ioremap") - if v['flags'] & constants.LX_VM_ALLOC: - gdb.write(" vmalloc") - if v['flags'] & constants.LX_VM_MAP: - gdb.write(" vmap") - if v['flags'] & constants.LX_VM_USERMAP: - gdb.write(" user") - if v['flags'] & constants.LX_VM_DMA_COHERENT: - gdb.write(" dma-coherent") - if is_vmalloc_addr(v['pages']): - gdb.write(" vpages") - gdb.write("\n") + nr_vmap_nodes = gdb.parse_and_eval('nr_vmap_nodes') + for i in range(0, nr_vmap_nodes): + vn = gdb.parse_and_eval('&vmap_nodes[%d]' % i) + for vmap_area in lists.list_for_each_entry(vn['busy']['head'], vmap_area_ptr_type, "list"): + if not vmap_area['vm']: + gdb.write("0x%x-0x%x %10d vm_map_ram\n" % (vmap_area['va_start'], vmap_area['va_end'], + vmap_area['va_end'] - vmap_area['va_start'])) + continue + v = vmap_area['vm'] + gdb.write("0x%x-0x%x %10d" % (v['addr'], v['addr'] + v['size'], v['size'])) + if v['caller']: + gdb.write(" %s" % str(v['caller']).split(' ')[-1]) + if v['nr_pages']: + gdb.write(" pages=%d" % v['nr_pages']) + if v['phys_addr']: + gdb.write(" phys=0x%x" % v['phys_addr']) + if v['flags'] & constants.LX_VM_IOREMAP: + gdb.write(" ioremap") + if v['flags'] & constants.LX_VM_ALLOC: + gdb.write(" vmalloc") + if v['flags'] & constants.LX_VM_MAP: + gdb.write(" vmap") + if v['flags'] & constants.LX_VM_USERMAP: + gdb.write(" user") + if v['flags'] & constants.LX_VM_DMA_COHERENT: + gdb.write(" dma-coherent") + if is_vmalloc_addr(v['pages']): + gdb.write(" vpages") + gdb.write("\n") LxVmallocInfo() -- 2.18.0
