Bug #194: MOSDMap memory leak? - Linux kernel client - Ceph

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Bug #194

closed

MOSDMap memory leak?

Added by Sage Weil almost 14 years ago. Updated over 10 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Category:

Target version:

v2.6.35

% Done:

Source:

Tags:

Backport:

Regression:

Severity:

Reviewed:

Affected Versions:

ceph-qa-suite:

Crash signature (v1):

Crash signature (v2):

Description

Code audit looks ok. Could this be a false alarm somehow?

unreferenced object 0xffff8800d5f56080 (size 192):
  comm "ceph-msgr/1", pid 2690, jiffies 4364082687 (age 14580.896s)
  hex dump (first 32 bytes):
    5a 5a 5a 5a 5a 5a 5a 5a 00 00 00 00 00 00 00 00  ZZZZZZZZ........
    29 00 7f 00 00 00 d1 00 00 00 00 00 00 00 00 00  )...............
  backtrace:
    [<ffffffff810b18da>] create_object+0x190/0x292
    [<ffffffff81432101>] kmemleak_alloc+0x5b/0xa2
    [<ffffffff810ab689>] kmem_cache_alloc+0x14f/0x17d
    [<ffffffffa0051bbf>] ceph_msg_new+0x37/0x209 [ceph]
    [<ffffffffa00600b0>] alloc_msg+0x49/0x2e1 [ceph]
    [<ffffffffa0053724>] try_read+0x778/0x1286 [ceph]
    [<ffffffffa0055d11>] con_work+0x129/0x6b2 [ceph]
    [<ffffffff81048406>] worker_thread+0x1e8/0x2fa
    [<ffffffff8104b196>] kthread+0x7d/0x85
    [<ffffffff81003794>] kernel_thread_helper+0x4/0x10
    [<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff8801057a5930 (size 256):
  comm "ceph-msgr/1", pid 2690, jiffies 4364082687 (age 14580.896s)
  hex dump (first 32 bytes):
    5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a  ZZZZZZZZZZZZZZZZ
    5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a  ZZZZZZZZZZZZZZZZ
  backtrace:
    [<ffffffff810b18da>] create_object+0x190/0x292
    [<ffffffff81432101>] kmemleak_alloc+0x5b/0xa2
    [<ffffffff810ab34c>] __kmalloc+0x195/0x1c2
    [<ffffffffa0051cbb>] ceph_msg_new+0x133/0x209 [ceph]
    [<ffffffffa00600b0>] alloc_msg+0x49/0x2e1 [ceph]
    [<ffffffffa0053724>] try_read+0x778/0x1286 [ceph]
    [<ffffffffa0055d11>] con_work+0x129/0x6b2 [ceph]
    [<ffffffff81048406>] worker_thread+0x1e8/0x2fa
    [<ffffffff8104b196>] kthread+0x7d/0x85
    [<ffffffff81003794>] kernel_thread_helper+0x4/0x10
    [<ffffffffffffffff>] 0xffffffffffffffff