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From: Roman Gushchin To: Peng Fan Cc: "linux-mm@kvack.org" , "bpf@vger.kernel.org" , "daniel@iogearbox.net" , "ast@kernel.org" , "zlim.lnx@gmail.com" , "cgroups@vger.kernel.org" , "hannes@cmpxchg.org" , "mhocko@kernel.org" , "shakeelb@google.com" , "muchun.song@linux.dev" Subject: Re: [Oops] vfree abort in bpf_jit_free with memcg_data value 0xffff Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: AAF1E180002 X-Stat-Signature: 4c3o36dxftew4yn3wem4x5ibr5izip33 X-HE-Tag: 1717462256-817784 X-HE-Meta: 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 7Oqxvmyw Xf9QqKiQaHFG/wzyM44/7pBVoqCmjQZgucPmppIdNq7isBd1wlYchAwjbpvAgj7LhiSk8vezTBuL1eS2YGRcMi22+GG/CBru++mhBct8CwmHTT25zGpdUY/205Fh+sRNMwKK7abfekGBuF2Bt1RN/ht2xvp5HxRysS15I3JxuHbCptb0DDMuYbS/R5Dnb+z5TttJX3RvYP9VXSrVnweQa4wpp8Fc8TegfMOg4xkoatiV1zPw= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Jun 03, 2024 at 09:10:43AM +0000, Peng Fan wrote: > Hi All, > > We are running 6.6 kernel on NXP i.MX95 platform, and meet an issue very > hard to reproduce. Panic log in the end. I check the registers and source code. Hi! Do you know by a chance if the issue is reproducible on newer kernels? >From a very first glance, I doubt it's a generic memory accounting issue, otherwise we'd see a lot more instances of it. So my guess it something related to bpf jit code. It seems like there were heavy changes since 6.6, this is why I'm asking about newer kernels. Thanks!