Enquiry of BV
WORLDS VALVE <tjwdsv@...>
Hi Sir/Madam, Glad to hear that you are on the market for valves, we specialize in this field for 13 years with the strength of BUTTERFLY VALVES with good quality and pretty competitive price. Also we have our own professional designers to meet any of your requirements. If you are interested in,Please let me know.
Best Regards!
Huang Dekai ____________________________ Tianjin Worlds Valve co., ltd. Tel:0086-13682070288
Add:No.25,Fuhui Road,Jinnan District,Tianjin, China
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[ANNOUNCE] Release v4.19.113-cip23
Nobuhiro Iwamatsu
Hi all,
CIP kernel team has released Linux kernel v4.19.113-cip23. The linux-4.19.y-cip tree has been updated base version from v4.19.109 to v4.19.113. You can get this release via the git tree at: v4.19.113-cip23: repository: https://git.kernel.org/pub/scm/linux/kernel/git/cip/linux-cip.git branch: linux-4.19.y-cip commit hash: 52f7171e0b7fcf44b37d9dc270de2576bcefe169 added commits: CIP: Bump version suffix to -cip23 after merge from stable Best regards, Nobuhiro
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Re: [PATCH 4.4] vhost: Check docket sk_family instead of call getname
punit1.agrawal@...
Hi Pavel,
A couple of comments below - Pavel Machek <pavel@ucw.cz> writes: From: Eugenio Pérez <eperezma@redhat.com>Please follow the style guidelines documented in Documentation/process/stable-kernel-rules.rst. In this instance, please mention the upstream commit id following - The upstream commit ID must be specified with a separate line above the commit text, like this: commit <sha1> upstream. For an example, take a look at Commit ad598a48fe61 ("vhost: Check docket sk_family instead of call getname"). It's a backport of the same upstream patch to 4.19 stable kernel. Signed-off-by: Pavel Machek <pavel@denx.de>This patch fails to apply with the following error - % git am vhost.mbox Applying: vhost: Check docket sk_family instead of call getname error: corrupt patch at line 16 Patch failed at 0001 vhost: Check docket sk_family instead of call getname hint: Use 'git am --show-current-patch' to see the failed patch When you have resolved this problem, run "git am --continue". If you prefer to skip this patch, run "git am --skip" instead. To restore the original branch and stop patching, run "git am --abort". There is some encoding issue in your mail client. The same workflow works for other kernel patches. Thanks, Punit
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Re: 4.4-rt: Need testing on arm32
Pavel Machek
Hi!
I tried to prepare next 4.4-rt release. I have code ready, but whileAnd I pushed code _without_ the patch to kernel.org, To gitolite.kernel.org:pub/scm/linux/kernel/git/cip/linux-cip.git 924af895a033..fbc533f445d2 linux-4.4.y-cip-rt -> linux-4.4.y-cip-rt Best regards, Pavel -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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4.4-rt: Need testing on arm32
Pavel Machek
Hi!
I tried to prepare next 4.4-rt release. I have code ready, but while running tests I realized that only two targets are used to run them. We 4.19-rt has known bugs breaking boot on de0-nano (and probably other) boards, and according to code inspection, same bug is present in 4.4-rt. Fix is not complex, but I'm not comfortable applying it without _any_ testing. If I'm right, 4.4-rt should be broken on socfpga boards (arm32) in non-realtime configuration; it should panic on boot in cca 50% of cases. Patch below should fix it. Best regards, Pavel commit 20124aef8572b764ffd90d836253153102c763c5 Author: Pavel Machek <pavel@ucw.cz> Date: Sat Mar 21 22:58:43 2020 +0100 With -rt tree but prempt-rt not enabled, de0-nano was getting failures during boot, such as this: https://lava.ciplatform.org/scheduler/job/13037 [ 6.813352] Freeing unused kernel memory: 1024K [ 6.817927] Unable to handle kernel paging request at virtual address e7fddef0 [ 6.825121] pgd = (ptrval) [ 6.827816] [e7fddef0] *pgd=27e1141e(bad) [ 6.831818] Internal error: Oops: 8000000d [#1] SMP ARM [ 6.837019] Modules linked in: [ 6.840067] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.106-cip21-gc82fe0af5 #1 [ 6.847601] Hardware name: Altera SOCFPGA [ 6.851596] PC is at 0xe7fddef0 [ 6.854733] LR is at irq_work_run_list+0x84/0xc0 Bisect revealed fc9f4631a290 is the problematic commit, and some code auditing revealed that it is working with wrong list. Fix it. Signed-off-by: Pavel Machek <pavel@denx.de> Fixes: fc9f4631a290 ("irqwork: push most work into softirq context") diff --git a/kernel/irq_work.c b/kernel/irq_work.c index 2899ba0d23d1..19896e6f1b2a 100644 --- a/kernel/irq_work.c +++ b/kernel/irq_work.c @@ -78,7 +78,8 @@ bool irq_work_queue_on(struct irq_work *work, int cpu) if (!irq_work_claim(work)) return false; - if (IS_ENABLED(CONFIG_PREEMPT_RT_FULL) && !(work->flags & IRQ_WORK_HARD_IRQ)) + if ((IS_ENABLED(CONFIG_PREEMPT_RT_FULL) && !(work->flags & IRQ_WORK_HARD_IRQ)) + || (work->flags & IRQ_WORK_LAZY)) list = &per_cpu(lazy_list, cpu); else list = &per_cpu(raised_list, cpu); -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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[PATCH 4.4] vhost: Check docket sk_family instead of call getname
Pavel Machek
From: Eugenio Pérez <eperezma@redhat.com>
Doing so, we save one call to get data we already have in the struct. Also, since there is no guarantee that getname use sockaddr_ll parameter beyond its size, we add a little bit of security here. It should do not do beyond MAX_ADDR_LEN, but syzbot found that ax25_getname writes more (72 bytes, the size of full_sockaddr_ax25, versus 20 + 32 bytes of sockaddr_ll + MAX_ADDR_LEN in syzbot repro). Fixes: 3a4d5c94e9593 ("vhost_net: a kernel-level virtio server") Reported-by: syzbot+f2a62d07a5198c819c7b@syzkaller.appspotmail.com Signed-off-by: Eugenio Pérez <eperezma@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> Upstream: 42d84c8490f9f0931786f1623191fcab397c3d64 Signed-off-by: Pavel Machek <pavel@denx.de> --- drivers/vhost/net.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) --- Since it is a security problem, I backported the patch to 4.4. I compile tested it on cip test farm, but it was only built for single target, probably due to too big config. diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 1459dc9fd701..5efac33c29dc 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -815,11 +815,7 @@ static int vhost_net_release(struct inode *inode, struct file *f) static struct socket *get_raw_socket(int fd) { - struct { - struct sockaddr_ll sa; - char buf[MAX_ADDR_LEN]; - } uaddr; - int uaddr_len = sizeof uaddr, r; + int r; struct socket *sock = sockfd_lookup(fd, &r); if (!sock) @@ -831,12 +827,7 @@ static struct socket *get_raw_socket(int fd) goto err; } - r = sock->ops->getname(sock, (struct sockaddr *)&uaddr.sa, - &uaddr_len, 0); - if (r) - goto err; - - if (uaddr.sa.sll_family != AF_PACKET) { + if (sock->sk->sk_family != AF_PACKET) { r = -EPFNOSUPPORT; goto err; } -- 2.20.1 -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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CIP IRC weekly meeting today
masashi.kudo@...
Hi all,
Kindly be reminded to attend the weekly meeting through IRC to discuss technical topics with CIP kernel today. *Please note that the IRC meeting was rescheduled to UTC (GMT) 09:00 starting from the first week of Apr. according to TSC meeting* https://www.timeanddate.com/worldclock/meetingdetails.html?year=2020&month=3&day=26&hour=9&min=0&sec=0&p1=224&p2=179&p3=136&p4=37&p5=241&p6=248 US-West US-East UK DE TW JP 02:00 05:00 09:00 10:00 17:00 18:00 Channel: * irc:chat.freenode.net:6667/cip Last meeting minutes: https://irclogs.baserock.org/meetings/cip/2020/03/cip.2020-03-19-09.00.log.html Agenda: * Action item 1. Combine root filesystem with kselftest binary - Iwamatsu-san 2. Assign the owner of "CIP kernel config" - masashi910 3. Strengthen sustainable process to backport patches from Mainline/LTS - Kernel Team 3-1. Workflow for identifying important fixes, backporting, and reviewing them 3-2. Prepare the tools to be used for this workflow 3-3. Get practice in backporting patches 4. Upload a guideline for reference hardware platform addition - masashi910 * Kernel maintenance updates * Kernel testing * CIP Core * Software update * CIP Security * AOB 1. Summer Time US summer time started on March 8. CEST starts on March 29. This IRC meeting stays to start at UTC (GMT) 09:00. The meeting will take 30 min, although it can be extended to an hour if it makes sense and those involved in the topics can stay. Otherwise, the topic will be taken offline or in the next meeting. Best regards, -- M. Kudo Cybertrust Japan Co., Ltd.
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Update - Re: April 6 cutover from Mailman2 to Group.io
Dear CIP community, I have learned more information about the cutover plans. The migration is planned to start at 2 pm Pacific time on April 6, which is : 5 pm Eastern / 11 pm CET / and Tuesday, April 7 , 6 am JST The migration will probably take just a few hours, but the migration team would like to reserve 24 hours in case they run into any issues with transferring the archives into the new system. I'll send more information about the migration as I learn more and as we get closer to the conversion date. Thanks for your patience and understanding. Best regards, Neal Neal Caidin Program Manager, Program Management & Operations The Linux Foundation +1 (919) 238-9104 (w/h) +1 (919) 949-1861 (m)
On Thu, Mar 12, 2020 at 3:50 PM Neal Caidin <ncaidin@...> wrote:
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[ANNOUNCE] v4.19.106-cip21-rt8
Pavel Machek
Hi!
vv4.19.106-cip21-rt8 should be available at kernel.org. We are only testing kernels in non-realtime configurations, but this proved useful in this case, and uncovered problem on de0-nano (32-bit arm). Bisecting was quite interesting, but in the end we got close enough to guess the guilty commit, and fix was comparatively easy. Thanks for all the help (and that includes upstream). I still need that or equivalent patch merged into -rt tree. Technical details are here: https://git.kernel.org/pub/scm/linux/kernel/git/cip/linux-cip.git/commit/?h=linux-4.19.y-cip-rt&id=1edcec1ee609d349e520e85e7cdfd938f6bafdda Trees are available at https://git.kernel.org/pub/scm/linux/kernel/git/cip/linux-cip.git/log/?h=linux-4.19.y-cip-rt https://git.kernel.org/pub/scm/linux/kernel/git/cip/linux-cip.git/log/?h=linux-4.19.y-cip-rt-rebase And their content should be identical. Best regards, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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Re: Super long-term kernel support
Jan Kiszka
On 23.03.20 17:54, Andreas Weißel wrote:
Hi CIP kernel team,As Pavel already pointed out: The CIP kernel naturally remains a GPL project, usage is free under the terms of this license. The benefits of being a CIP member - besides ensuring the funding of this work - is the chance to influence which configurations and, thus, subsystems the CIP kernel will support, and on which hardware. Best regards, Jan -- Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate Competence Center Embedded Linux
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Re: realtime on de0-nano bisection
Pavel Machek
Hi!
Thanks for useful trick. I'll try to remember it in case it is neededIn the meantime:Just repeat the test case name 5 times in the gitlab-ci file. again. Best regards, Pavel -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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Re: Super long-term kernel support
Pavel Machek
Hi!
I have a question regarding the super long-term kernel support: canKernel is GPLed. If you get any version of kernel from anywhere, you are basically welcome to use it any way you want. That's what GPL says. Check with your lawyers. (Plus, CIP project is trying to be friendly member of community....) Best regards, Pavel (Not a lawyer, not speaking for anyone but my horse.) -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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Super long-term kernel support
Andreas Weißel <andreas.weissel@...>
Hi CIP kernel team,
I have a question regarding the super long-term kernel support: can other commercial or non-commercial projects make use of such kernel versions like "linux-4.19.y-cip", i.e., use the CIP git repositories to address security issues (CVEs) in the Linux kernel even after the upstream long-term versions are no longer supported, or is this considered a service for members only? Regards Andreas Weissel
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BRONZE BV Inquiry
WORLDS VALVE <tjwdsv@...>
Hi Sir/Madam, Glad to hear that you are on the market for valves, we specialize in this field for 13 years with the strength of FLANGED BRONZE BUTTERFLY VALVES with good quality and pretty competitive price.
Also we have our own professional designers to meet any of your requirements. If you are interested in,Please let me know.
Best Regards!
Huang Dekai ____________________________ Tianjin Worlds Valve co., ltd. Tel:0086-13682070288
Add:No.25,Fuhui Road,Jinnan District,Tianjin, China
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Re: [backport 4.4] mac80211: Fix TKIP replay protection immediately after key setup
Ben Hutchings <ben.hutchings@...>
On Mon, 2020-02-17 at 23:14 +0000, nobuhiro1.iwamatsu@toshiba.co.jp wrote:
Hi Pavel,The security tracker shows a lot of fixes missing from 4.4.-----Original Message-----If testing is difficult, how about sending a patch to stable ML as RFC? Ben. -- Ben Hutchings, Software Developer Codethink Ltd https://www.codethink.co.uk/ Dale House, 35 Dale Street Manchester, M1 2HF, United Kingdom
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Re: [backport 4.4] mac80211: Fix TKIP replay protection immediately after key setup
Ben Hutchings <ben.hutchings@...>
On Sat, 2020-02-15 at 20:54 +0100, Pavel Machek wrote:
Hi!That's what I would do. Do you have other patches that should go to 4.4/4.19?This reference is wrong; the upstream commit is 6f601265215a421f425ba3a4850a35861d024643. Also the usual format for this reference has "upstream." after the commit hash. [...] --- a/net/mac80211/tkip.cThis backport makes sense to me. Please can you send it to the stable list, with the fixed commit message? Ben. -- Ben Hutchings, Software Developer Codethink Ltd https://www.codethink.co.uk/ Dale House, 35 Dale Street Manchester, M1 2HF, United Kingdom
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Re: realtime on de0-nano bisection
Chris Paterson
Hi Pavel,
From: Pavel Machek <pavel@denx.de>Just repeat the test case name 5 times in the gitlab-ci file. E.g. https://gitlab.com/cip-project/cip-kernel/linux-cip/-/commit/791b84001ce05a9a26117a0c2de0e7250b343960 Regards, Chris
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Re: Backporting "net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup"
Ben Hutchings <ben.hutchings@...>
On Fri, 2020-03-13 at 22:03 +0100, Pavel Machek wrote:
Hi!I also had a go at this before catching up on cip-dev and finding you had also done so. So I've compared this with my version. I did minimal compile testing, I'll need to run it behind gitlab ci;I haven't done real testing yet either. Best regards,This leaves the ret variable unused, so I deleted it. [...] diff --git a/include/net/ipv6.h b/include/net/ipv6.hI think we should pick commit c4e85f73afb6 "net: ipv6: add net argument to ip6_dst_lookup_flow" first instead of adding this adapter. It is explicitly described as preparation for this fix. [...] --- a/net/tipc/udp_media.cYou've not deleted the call to the old ipv6_dst_lookup operation here. The mlx5_en driver *does* use the ipv6_dst_lookup operation in 4.19 so it should be converted to ipv6_dst_lookup_flow. The relevant code is in drivers/net/ethernet/mellanox/mlx5/core/en_tc.c. Ben. -- Ben Hutchings, Software Developer Codethink Ltd https://www.codethink.co.uk/ Dale House, 35 Dale Street Manchester, M1 2HF, United Kingdom
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Re: realtime on de0-nano bisection
Pavel Machek
Hi!
That's my job, I guess. I asked for bisect and got bisect[...]From: cip-dev <cip-dev-bounces@lists.cip-project.org> On Behalf Of Chris (thanks!). And yes, I have to agree: In the meantime: https://gitlab.com/cip-project/cip-kernel/linux-cip/-/jobs/478548891 https://lava.ciplatform.org/scheduler/job/13037 So yes, it seems this is not reproducible. Is it easy to make the test run .. say 5 times? I'm starting to suspect pick fc9f4631a290 irqwork: push most work into softirq context Best regards, Pavel -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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Re: Linux-cip: Kselftest plans
Ben Hutchings <ben.hutchings@...>
On Tue, 2020-03-17 at 13:30 +0530, vijai kumar wrote:
On Tue, Mar 17, 2020 at 4:19 AM <nobuhiro1.iwamatsu@toshiba.co.jp> wrote:[...] Some self-tests will fail on older kernel versions due to missingI am now implementing LAVA's kselftest. This kselftest uses kseflftest included in the latest kernel.Thank you Nobuhiro-San. Our original idea was to use the kselftest features or bugs that might not be practically fixable. Test cases can report "skip" rather than "fail" for missing features, but this is not done consistently. The way I've used kselftest with stable branches has been to look for regressions rather than any failures. The Linaro folks are doing that (reporting regressions only) when sending test results to the stable list, but I don't know how or how much they have automated that. Ben. -- Ben Hutchings, Software Developer Codethink Ltd https://www.codethink.co.uk/ Dale House, 35 Dale Street Manchester, M1 2HF, United Kingdom
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