netdev - Re: [PATCH v3 net-next 00/12] ipv4: fib: Convert RTM_NEWROUTE and RTM

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Message-ID: <20250304184919.13080-1-kuniyu@amazon.com>
Date: Tue, 4 Mar 2025 10:49:13 -0800
From: Kuniyuki Iwashima <kuniyu@...zon.com>
To: <kuba@...nel.org>
CC: <davem@...emloft.net>, <dsahern@...nel.org>, <edumazet@...gle.com>,
	<horms@...nel.org>, <kuni1840@...il.com>, <kuniyu@...zon.com>,
	<netdev@...r.kernel.org>, <pabeni@...hat.com>
Subject: Re: [PATCH v3 net-next 00/12] ipv4: fib: Convert RTM_NEWROUTE and RTM_DELROUTE to per-netns RTNL.

From: Jakub Kicinski <kuba@...nel.org>
Date: Tue, 4 Mar 2025 06:39:28 -0800
> On Thu, 27 Feb 2025 20:23:16 -0800 Kuniyuki Iwashima wrote:
> > Patch 1 is misc cleanup.
> > Patch 2 ~ 8 converts two fib_info hash tables to per-netns.
> > Patch 9 ~ 12 converts rtnl_lock() to rtnl_net_lcok().
> 
> I think there's another leak. Not 100% reproducible but one of the runs
> of the device csum test hit:

Looks like v6 sk is also leaked...
Will try csum test.

Thanks!


> 
> unreferenced object 0xffff888005c35440 (size 1576):
>   comm "csum", pid 366, jiffies 4294693057
>   hex dump (first 32 bytes):
>     c0 00 02 01 c0 00 02 02 00 00 00 00 84 d0 ff 00  ................
>     02 00 01 41 00 00 00 00 00 00 00 00 00 00 00 00  ...A............
>   backtrace (crc 3c3950b5):
>     kmem_cache_alloc_noprof+0x2ad/0x350
>     sk_prot_alloc.constprop.0+0x4e/0x1b0
>     sk_alloc+0x36/0x6c0
>     inet_create.part.0.constprop.0+0x289/0xea0
>     __sock_create+0x23c/0x6a0
>     __sys_socket+0x11c/0x1e0
>     __x64_sys_socket+0x72/0xb0
>     do_syscall_64+0xc1/0x1d0
>     entry_SYSCALL_64_after_hwframe+0x77/0x7f
> 
> https://netdev-3.bots.linux.dev/vmksft-drv-hw-dbg/results/17921/2-csum-py/stdout