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bh=RVEHEUapI70GpGB38m254iV9KetAM2LV4sSrD3wxneI=; b=Cnmm4XvK95gbEQ2Ew8ALvh6CtIn/ZaD1L5zskuKxNDaA9z59IIerpn3DFFVDHzzJFq c3wJelj+WDftwZ5piHEKh/0WQgoiPUIC9Et8ncAEMaELY2vgrHYG68bMpkqy15lUfLTM o2fc9QC5E4A0eBe99TjpCtJmzfndNjs5YdCYzf6BiNdf7Nb1l2tZTSilaprTHZl3tuYQ zkbhqq3aptctiNvIh4Ydi+dDXh0C3lhqkWJcTAtk4g9tQ74Gap+NMVTgh4RoMN2KH4Ma MUxn5dx+qWB3PPL+v905rIh7ejDDW4LpQP5iXYwdBHoFt+L5qH9+SyXmimfnTpTmFrxw Dhvg== X-Gm-Message-State: AOJu0YwsD4ybCv1lAt8/q/YRT3psBvHLZbNKUM8ge+JSbgrxwfDQdF9c jGaImtwtimCJwU8WX6zSrX89sbNCPPiJv00z8o6oNlUSLSH4EFf7HegSoUlGAEmqO/xBl2OGCa/ WBbAh2gF5/lh4faE2qgJHeFgEOSwKsZDlUK+xijIOrAo0NVWINHzFVvn/0biAVhzPsAxmp4HhZP VfEJIr4ZjdixoehvtvvXcTxdSccIXE0rV4UaiwxteU X-Received: from qtnz19.prod.google.com ([2002:ac8:4553:0:b0:503:2f52:46c5]) (user=pefoley job=prod-delivery.src-stubby-dispatcher) by 2002:ac8:7c55:0:b0:502:6312:8d6 with SMTP id d75a77b69052e-5070bba4c79mr167455861cf.12.1771883555650; Mon, 23 Feb 2026 13:52:35 -0800 (PST) Date: Mon, 23 Feb 2026 16:52:24 -0500 In-Reply-To: <20260223-passt-v1-0-101c6ba1c88a@google.com> Mime-Version: 1.0 References: <20260223-passt-v1-0-101c6ba1c88a@google.com> X-Mailer: b4 0.14.3 Message-ID: <20260223-passt-v1-1-101c6ba1c88a@google.com> Subject: [PATCH 1/2] Only kill passt if it wrote a pidfile From: Peter Foley To: qemu-devel@nongnu.org Cc: Jason Wang , Peter Foley Content-Type: text/plain; charset="utf-8" Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::84a; envelope-from=3I8ycaQcKCoIvklurk4muumrk.iuswks0-jk1krtutmt0.uxm@flex--pefoley.bounces.google.com; helo=mail-qt1-x84a.google.com X-Spam_score_int: -95 X-Spam_score: -9.6 X-Spam_bar: --------- X-Spam_report: (-9.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @google.com) X-ZM-MESSAGEID: 1771883612455158500 Content-Transfer-Encoding: quoted-printable Avoid killing qemu if passt failed before writing a pidfile. pid is initialized to 0, so calling pid in this scenario would kill the entire process group. Signed-off-by: Peter Foley Reviewed-by: Laurent Vivier --- net/passt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/passt.c b/net/passt.c index 9ed811a514..b3d4b71314 100644 --- a/net/passt.c +++ b/net/passt.c @@ -102,7 +102,9 @@ static void net_passt_cleanup(NetClientState *nc) } #endif =20 - kill(s->pid, SIGTERM); + if (s->pid > 0) { + kill(s->pid, SIGTERM); + } if (g_remove(s->pidfile) !=3D 0) { warn_report("Failed to remove passt pidfile %s: %s", s->pidfile, strerror(errno)); --=20 2.53.0.371.g1d285c8824-goog