Messages in this thread | | | Date | Fri, 18 Aug 2006 14:28:13 +0200 | From | "Michal Piotrowski" <> | Subject | Re: [PATCH 2.6.18-rc4 00/10] Kernel memory leak detector 0.9 |
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Hi Catalin,
On 17/08/06, Catalin Marinas <catalin.marinas@gmail.com> wrote: > On 17/08/06, Catalin Marinas <catalin.marinas@gmail.com> wrote: > > I'm not sure it's a good idea, it might have other implications in > > slab.c. I better fix kmemleak (I think currently you could get a > > deadlock only on SMP). > > I attach a patch for kmemleak-0.9 which seems to work for me. It has a > new locking mechanism in that memory allocations are performed without > memleak_lock held. Let me know if you still get errors (I haven't > fully tested it yet).
Something doesn't work. It appears while udev start.
[<c0106cdc>] show_trace+0xd/0xf [<c0106dae>] dump_stack+0x17/0x19 [<c016e9a0>] __kmalloc+0xf6/0x10a [<c019a4bf>] load_elf_binary+0x5b/0xb46 [<c017d77a>] search_binary_handler+0xfc/0x2d4 [<c017daa5>] do_execve+0x153/0x1f0 [<c0104d5f>] sys_execve+0x29/0x7a [<c0105f11>] sysenter_past_esp+0x5b/0x79 kmemleak: pointer 0xf5a39ae0: trace: c016e767: <kmemleak_cache_alloc> c0127274: <dup_mm> c0127427: <copy_mm> c0128227: <copy_process> c012893: <do_fork> c0104d19: <sys_clone>
Kernel panic - not syncing: kmemleak: resizing pointer by alias 0xf5ad4a04
BUG: warning at /usr/src/linux-work8/arch/i386/kernel/smp.c:547/smp_call_function() [<c0106cdc>] show_trace+0xd/0xf [<c0106dae>] dump_stack+0x17/0x19 [<c0116ac4>] smp_call_function+0x52/0xf9 [<c0116bad>] smp_send_stop+0x16/0x20 [<c0170c35>] panic+0x50/0xdf [<c016e9a0>] __kmalloc+0xf6/0x10a [<c019a4bf>] load_elf_binary+0x5b/0xb46 [<c017d77a>] search_binary_handler+0xfc/0x2d4 [<c017daa5>] do_execve+0x153/0x1f0 [<c0104d5f>] sys_execve+0x29/0x7a [<c0105f11>] sysenter_past_esp+0x5b/0x79
http://www.stardust.webpages.pl/files/o_bugs/kmemleak-0.9/kml-config2
> > Thanks. > > -- > Catalin > > >
Regards, Michal
-- Michal K. K. Piotrowski LTG - Linux Testers Group (http://www.stardust.webpages.pl/ltg/wiki/) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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