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Move GFP flags to class KernelConfig

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This commit is contained in:
Carsten Grohmann 2020-10-31 14:45:32 +01:00
parent 2d55b800dc
commit b2b5a1b1db
1 changed files with 56 additions and 56 deletions
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112
OOMAnalyser.py
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@ -80,6 +80,61 @@ def show_notifybox(prefix, msg):
class KernelConfig(object):
"""Kernel configuration"""
GFP_FLAGS = {
'GFP_ATOMIC': {'value': '__GFP_HIGH | __GFP_ATOMIC | __GFP_KSWAPD_RECLAIM'},
'GFP_KERNEL': {'value': '__GFP_RECLAIM | __GFP_IO | __GFP_FS'},
'GFP_KERNEL_ACCOUNT': {'value': 'GFP_KERNEL | __GFP_ACCOUNT'},
'GFP_NOWAIT': {'value': '__GFP_KSWAPD_RECLAIM'},
'GFP_NOIO': {'value': '__GFP_RECLAIM'},
'GFP_NOFS': {'value': '__GFP_RECLAIM | __GFP_IO'},
'GFP_USER': {'value': '__GFP_RECLAIM | __GFP_IO | __GFP_FS | __GFP_HARDWALL'},
'GFP_DMA': {'value': '__GFP_DMA'},
'GFP_DMA32': {'value': '__GFP_DMA32'},
'GFP_HIGHUSER': {'value': 'GFP_USER | __GFP_HIGHMEM'},
'GFP_HIGHUSER_MOVABLE': {'value': 'GFP_HIGHUSER | __GFP_MOVABLE'},
'GFP_TRANSHUGE_LIGHT': {'value': 'GFP_HIGHUSER_MOVABLE | __GFP_COMP | __GFP_NOMEMALLOC | __GFP_NOWARN & ~__GFP_RECLAIM'},
'GFP_TRANSHUGE': {'value': 'GFP_TRANSHUGE_LIGHT | __GFP_DIRECT_RECLAIM'},
'__GFP_DMA': {'value': 0x01},
'__GFP_HIGHMEM': {'value': 0x02},
'__GFP_DMA32': {'value': 0x04},
'__GFP_MOVABLE': {'value': 0x08},
'__GFP_RECLAIMABLE': {'value': 0x10},
'__GFP_HIGH': {'value': 0x20},
'__GFP_IO': {'value': 0x40},
'__GFP_FS': {'value': 0x80},
'__GFP_COLD': {'value': 0x100},
'__GFP_NOWARN': {'value': 0x200},
'__GFP_RETRY_MAYFAIL': {'value': 0x400},
'__GFP_NOFAIL': {'value': 0x800},
'__GFP_NORETRY': {'value': 0x1000},
'__GFP_MEMALLOC': {'value': 0x2000},
'__GFP_COMP': {'value': 0x4000},
'__GFP_ZERO': {'value': 0x8000},
'__GFP_NOMEMALLOC': {'value': 0x10000},
'__GFP_HARDWALL': {'value': 0x20000},
'__GFP_THISNODE': {'value': 0x40000},
'__GFP_ATOMIC': {'value': 0x80000},
'__GFP_ACCOUNT': {'value': 0x100000},
'__GFP_DIRECT_RECLAIM': {'value': 0x400000},
'__GFP_WRITE': {'value': 0x800000},
'__GFP_KSWAPD_RECLAIM': {'value': 0x1000000},
'__GFP_NOLOCKDEP': {'value': 0x2000000},
'__GFP_RECLAIM': {'value': '__GFP_DIRECT_RECLAIM|__GFP_KSWAPD_RECLAIM'},
}
"""
Definition of GFP flags
The decimal value of a flag will be calculated by evaluating the entries from left to right. Grouping by
parentheses is not supported.
Source: include/linux/gpf.h
@note : This list os probably a mixture of different kernel versions - be carefully
@todo: Implement kernel specific versions because this flags are not constant
(see https://github.com/torvalds/linux/commit/e67d4ca79aaf9d13a00d229b1b1c96b86828e8ba#diff-020720d0699e3ae1afb6fcd815ca8500)
"""
ps_table_items = ['pid', 'uid', 'tgid', 'total_vm_pages', 'rss_pages', 'nr_ptes_pages', 'swapents_pages',
'oom_score_adj']
"""Elements of the process table"""
@ -381,61 +436,6 @@ class OOMAnalyser(object):
oom_entity = None
"""Reference to the OOMEntity object"""
GFP_FLAGS = {
'GFP_ATOMIC': {'value': '__GFP_HIGH | __GFP_ATOMIC | __GFP_KSWAPD_RECLAIM'},
'GFP_KERNEL': {'value': '__GFP_RECLAIM | __GFP_IO | __GFP_FS'},
'GFP_KERNEL_ACCOUNT': {'value': 'GFP_KERNEL | __GFP_ACCOUNT'},
'GFP_NOWAIT': {'value': '__GFP_KSWAPD_RECLAIM'},
'GFP_NOIO': {'value': '__GFP_RECLAIM'},
'GFP_NOFS': {'value': '__GFP_RECLAIM | __GFP_IO'},
'GFP_USER': {'value': '__GFP_RECLAIM | __GFP_IO | __GFP_FS | __GFP_HARDWALL'},
'GFP_DMA': {'value': '__GFP_DMA'},
'GFP_DMA32': {'value': '__GFP_DMA32'},
'GFP_HIGHUSER': {'value': 'GFP_USER | __GFP_HIGHMEM'},
'GFP_HIGHUSER_MOVABLE': {'value': 'GFP_HIGHUSER | __GFP_MOVABLE'},
'GFP_TRANSHUGE_LIGHT': {'value': 'GFP_HIGHUSER_MOVABLE | __GFP_COMP | __GFP_NOMEMALLOC | __GFP_NOWARN & ~__GFP_RECLAIM'},
'GFP_TRANSHUGE': {'value': 'GFP_TRANSHUGE_LIGHT | __GFP_DIRECT_RECLAIM'},
'__GFP_DMA': {'value': 0x01},
'__GFP_HIGHMEM': {'value': 0x02},
'__GFP_DMA32': {'value': 0x04},
'__GFP_MOVABLE': {'value': 0x08},
'__GFP_RECLAIMABLE': {'value': 0x10},
'__GFP_HIGH': {'value': 0x20},
'__GFP_IO': {'value': 0x40},
'__GFP_FS': {'value': 0x80},
'__GFP_COLD': {'value': 0x100},
'__GFP_NOWARN': {'value': 0x200},
'__GFP_RETRY_MAYFAIL': {'value': 0x400},
'__GFP_NOFAIL': {'value': 0x800},
'__GFP_NORETRY': {'value': 0x1000},
'__GFP_MEMALLOC': {'value': 0x2000},
'__GFP_COMP': {'value': 0x4000},
'__GFP_ZERO': {'value': 0x8000},
'__GFP_NOMEMALLOC': {'value': 0x10000},
'__GFP_HARDWALL': {'value': 0x20000},
'__GFP_THISNODE': {'value': 0x40000},
'__GFP_ATOMIC': {'value': 0x80000},
'__GFP_ACCOUNT': {'value': 0x100000},
'__GFP_DIRECT_RECLAIM': {'value': 0x400000},
'__GFP_WRITE': {'value': 0x800000},
'__GFP_KSWAPD_RECLAIM': {'value': 0x1000000},
'__GFP_NOLOCKDEP': {'value': 0x2000000},
'__GFP_RECLAIM': {'value': '__GFP_DIRECT_RECLAIM|__GFP_KSWAPD_RECLAIM'},
}
"""
Definition of GFP flags
The decimal value of a flag will be calculated by evaluating the entries from left to right. Grouping by
parentheses is not supported.
Source: include/linux/gpf.h
@note : This list os probably a mixture of different kernel versions - be carefully
@todo: Implement kernel specific versions because this flags are not constant
(see https://github.com/torvalds/linux/commit/e67d4ca79aaf9d13a00d229b1b1c96b86828e8ba#diff-020720d0699e3ae1afb6fcd815ca8500)
"""
def __init__(self, oom):
self.results = {}
self.oom_entity = oom
@ -647,7 +647,7 @@ class OOMAnalyser(object):
flags = self.results['trigger_proc_gfp_flags']
del self.results['trigger_proc_gfp_flags']
else:
flags, unknown = self._hex2flags(self.results['trigger_proc_gfp_mask'], self.GFP_FLAGS)
flags, unknown = self._hex2flags(self.results['trigger_proc_gfp_mask'], self.kernel_cfg.GFP_FLAGS)
if unknown:
# TODO Missing format specifier {0:x} in Transcrypt?
flags.append('0x{}'.format(unknown.toString(16)))