20130517 Bug が直るまで ～メーカサイド～

2013/05/17 @電力系NCC情報交換会

通信機器メーカでスイッチ、ルータ等のファームウェアのバグがどう修正されるかについて解説した資料

Transcript

1. Bug ͕௚Δ·Ͱ ʙϝʔΧαΠυʙ 2013೥5݄17೔ ϛυΫϥδϟύϯגࣜձࣾ ߴౢོҰ ^55393_21948_18149_2516_4716$
2. Copyright ©2013 Midokura All rights reserved
   ຊ೔ͷΞδΣϯμ
   
   u ຊ೔ͷ໨త
   u #VHमਖ਼ͷྲྀΕ
   u ݱ৔ͷ4&ͷۤ೰
   
3. ຊ೔ͷ໨త
   
   
4. Copyright ©2013 Midokura All rights reserved
   ຊ೔ͷ໨త
   ͜ͷؒਃࠂͨ͠ Bug ·ͩ௚ͬͯͳ͍ Μ͚ͩͲ?
   ԿͰ!?
   
   ίίΛߟ͑ͯΈΔ
   ਃ͠༁͍͟͝·ͤΜɺຊ݅ʹؔ͠·ͯ͠͸ n  1೥ޙͷϝδϟʔόʔδϣϯΞοϓͰमਖ਼ ͢ΔࣄʹͳΓ·ͨ͠ n  ϋʔυ΢ΣΞ্ͷ੍ݶͱ͍͏ࣄʹͳΓɺ ಛʹमਖ਼ΛߦΘͳ͍ࣄʹͳΓ·ͨ͠ n  ͓٬༷Ҏ֎Ͱͷࣄྫ͕ͳ͘ɺ࠶ݱ΋ෆՄ ೳͷҝෆ۩߹ͱೝΊΒΕ·ͤΜͰͨ͠
5. Bugमਖ਼ͷྲྀΕ
   
   
6. Copyright ©2013 Midokura All rights reserved
   ো֐ਃࠂ૭ޱ΁࿈བྷ
   Ͳ͏΍ͬͯτϥϒϧਃࠂΛ͍ͯ͠Δ͔?
   
   Case 1
   ୲౰ӦۀɺSEʹ࿈བྷ
   Case 2
   
7. Copyright ©2013 Midokura All rights reserved
   ʲલఏ஌ࣝʳΑ͋͘ΔϝʔΧͷ૊৫ߏ੒
   
   Sales
   TAC Product Engineering
   l  Development (৽ن௥Ճ։ൃ) l  Sustaining (طଘमਖ਼) l  Quality Assurance (඼࣭؅ཧ) l  Technical Assistance (ड෇) l  Product Manager (੡඼࢓༷) l  Sales Representative (Ӧۀ) l  Systems Engineer (SE) ෦໳
   ػೳ
   ٬ઌSE͸ Ӧۀ෦໳
   ड෇ͱ ௚͢෦໳͸ผ
   ϙΠϯτ
   ࢓༷ܾఆͱ ։ൃɾमਖ਼ ෦໳΋ผ
   
8. Copyright ©2013 Midokura All rights reserved
   Case1.ো֐ਃࠂ૭ޱ΁࿈བྷ࣌ͷ໾ׂ
   
   TAC
   Eng.
   Product
   End user
   ΤεΧϨʔγϣϯͷྲྀΕ
   ༏ઌ౓ܾఆ
   ໾ ׂ ∐ ط஌໰୊ௐࠪ
   ࠶ݱࢼݧ
   ৄࡉௐࠪ
   ໰୊मਖ਼
   ໰୊ਃࠂ
   ࢓༷Өڹݕ౼
   ࢓༷मਖ਼
   
9. Copyright ©2013 Midokura All rights reserved
   Case1. ΍΍͍͜͠৔߹
   
   ༏ઌ౓ͷೝ͕ࣝ߹Θͳ͍
   ো֐ͳΜ͔ͩΒ࠷༏ઌͰ௚ͯ͠!
   ௨ৗɺϝʔΧαΠυͰ͸ ʮશஅܧଓத > ؒܽతஅܧଓ> ͦͷଞෆ۩߹ʯ ఔ౓ͷ༏ઌ౓ͷஈ֊෼͚ ຆͲͷέʔε͸ʮͦͷଞෆ۩߹ʯʹ૬౰
10. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    ༏ઌ౓ͷೝ͕ࣝ߹Θͳ͍
    Photo Credit: sambrown92 via Compfight cc ӦۀΤεΧϨʔγϣϯ ղ ΦϓγϣϯαʔϏεͷߪೖ Photo Credit: Steve Wilson via Compfight cc
11. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    मਖ਼λΠϛϯά͕͋Θͳ͍
    ԿͰ࣍ͷ࣍ͷύονͰमਖ਼ͳͷ!? ࣍Ͱ௚ͯ͠Α!
    ϦϦʔε࣌ͷ QA (඼࣭อূ) ࢼݧ͸ɺ࠷௿਺೔͔ΒҰिؒఔ ౓͔͔Γɺෆ۩߹͕ͰΔͱमਖ਼ޙ࠷ॳ͔Β΍Γ௚͠ ߲໨͕௥ՃʹͳΔͱࢼݧ߲໨ͷ௥Ճ΋ඞཁʹ ϦϦʔεִؒʹ΋ΑΔ͕ɺ௨ৗ͸Ұϲ݄͸࠷௿ඞཁ
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    Case1. ΍΍͍͜͠৔߹
    
    मਖ਼ͷӨڹ͕େ͖͍
    ϝδϟʔόʔδϣϯΞοϓΛ଴ͯͬͯ Ͳ͏͍͏͜ͱ? l  OSͷػೳશମ΁मਖ਼͕೾ٴ͢Δ༷ͳमਖ਼ l  FPGAͷίʔυ͕ඞཁʹͳΔ༷ͳमਖ਼ ౳ʹ͍ͭͯ͸ɺσάϨͷةݥ͕େ͖͍ҝɺ ϝδϟʔϦϦʔεαΠΫϧΛ଴͔ͭ͠ͳ͍έʔε΋…
13. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    मਖ਼λΠϛϯά͕͋Θͳ͍
    Photo Credit: ryoichi360 via Compfight cc ຊ౰ʹக໋తͳෆ۩߹ͷ৔߹͸ۓٸύονΛݕ౼ ސ٬ઐ༻ύον࡞੒΋Մೳ (ޙͷࠞཚΛট͘ͷͰඇਪ঑) ղ मਖ਼ͷӨڹ͕େ͖͍
    ˍ
14. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    ৘ใ͕গͳ͍
    αʔϏε͕ͱ·͍ͬͨͬͯͬͨͰ ͠ΐ? ͑ɺো֐ղੳϩά!? ͱʹ͔͘ࢭ·ͬͨͷΑ! ࠶ݱࢼݧ΍ৄࡉղੳΛਐΊΔʹ͸ɺ l  ো֐ϩά (show techͷྨ) l  ࣌ܥྻͷ࡞ۀϩά l  पลػثͷঢ়گ΍࣌ܥྻͷϩά ͸࠷௿ඞཁɻෳࡶͳো֐Ͱ͋Ε͹͋Δ΄Ͳɺঢ়گΛಛఆ͢ Δ৘ใ͕ඞཁͱͳΔ
    
15. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    ৘ใ͕গͳ͍
    Photo Credit: Mr. Fibble via Compfight ccc ো֐ൃੜ࣌ʹ͸αʔϏεܧଓͱͷ݉Ͷ߹͍Λߟྀ͠ͳ͕Βɺ ՄೳͳݶΓଟ͘ͷ৘ใΛอଘ͓ͯ͘͠ ղ
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    Case1. ΍΍͍͜͠৔߹
    
    ࠶ݱ͠ͳ͍
    ͏ͪͷػثͰো֐͕ىͬͨ͜͡Όͳ ͍! ղੳͰ͖ͳ͍ͬͯͲ͏͍͏͜ͱ? ো֐࣌ͷղੳϩάͰ໰୊͕ࣗ໌ʹ෼͔ΔέʔεҎ֎Ͱ͸ɺ ࠶ݱ͠ͳ͍ࣄʹ͸࣮͸ϝʔΧͰ΋ղੳͷਐΊΑ͏͕ͳ͍ ͦͷ৔߹ɺίʔυϨϏϡʔ౳ͷख୳ΓͷղੳͱͳΓɺ໎ٶ ೖΓͱͳΔέʔε΋ଟ͍
17. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    ࠶ݱ͠ͳ͍
    Photo Credit: Dan Gilbert via Compfight cc ো֐؀ڥͷอଘ ো֐ϩάͷอଘ ղ ϦϞʔτ઀ଓͷఏڙ Photo Credit: Mr. Fibble via Compfight cc
18. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    ௚ͤͳ͍
    ਃࠂͨ͠಺༰͕௚ͤͳ͍ͬͯͲ͏͍͏ ࣄ!? ࢓༷͍ͯ͠Δϋʔυ΢ΣΞͷෆ۩߹ʹΑΓमਖ਼͕ޙ͔Βग़ དྷͳ͍έʔεɺ֘౰ػೳΛमਖ਼͢ΔࣄͰଞͷػೳ΍ੑೳʹ ஶ͘͠ѱӨڹΛ༩͑ΔέʔεͰ͸ ʮ੍ݶࣄ߲ (Ϧϛςʔγϣϯ)ʯ ͱͯ͠੡඼࢓༷Λमਖ਼͢Δέʔε͕͋Δ
19. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    ௚ͤͳ͍
    Photo Credit: ryoichi360 via Compfight cc ୲౰ӦۀɺSE ౔Լ࠲ ղ
20. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    ෆ۩߹Ͱ͸ͳ͘ػೳ֦ு
    ◦◦ରԠͬͯॻ͍ͯ͋ΔΜ͔ͩΒɺ ××͕࣮૷͞Ε͍ͯͳ͍ͷ͓͔͍͠Ͱ ͠ΐ!? ඪ४ͷղऍ΍ɺ࠷ॳʹͦͷػೳ֦ுΛཁٻͨ͠ސ٬ͷཁ݅ ʹΑͬͯ͸ɺ͔͋ͬͯ͠Δ΂͖ػೳͰ΋ෆ۩߹Ͱ͸ͳ͘ ʮػೳ֦ுཁٻʯ ͱͯ͠ѻΘΕΔ৔߹͕͋Δ ͦͷ৔߹ɺ௨ৗϝδϟʔϦϦʔεִؒΛލ͙ඞཁ͕͋Δ͠ɺ ͦ΋ͦ΋ػೳ֦ு͕औΓࠐ·ΕΔ͔Ͳ͏͔΋…
21. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    ૬ੑ໰୊
    ԿͰ๭ࣾͱܨ͕Βͳ͍ͷ!? ඪ४ʹղऍͷ༨஍͕࢒͞Ε͍ͯͨΓ͢ΔͱɺͲͪΒ΋ਖ਼͠ ͍࣮૷Λ͍ͯ͠Δͷʹܨ͕Βͳ͍͜ͱ΋͋Δ ૬खͷ΄͏͕γΣΞ͕େ͖͍৔߹ʹ͸σϑΝΫτελϯ μʔυͱͯ͠ѻΘΕɺࣗࣾଆ͕ෆ۩߹ѻ͍͞ΕΔ৔߹΋
22. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    ෆ۩߹Ͱ͸ͳ͘ػೳ֦ு
    Photo Credit: Annika1982 via Compfight cc ࣄલݕূ ղ ୲౰ӦۀɺSE Λ௨ͨ͡ ػೳ֦ுཁٻ Photo Credit: AndyC_pics via Compfight cc ૬ੑ໰୊
    ˍ
23. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    ػೳӨڹ͕গͳ͍ෆ۩߹
    ؆୯ʹ௚ͤͦ͏ͳෆ۩߹ͳͷʹɺ͍ͭ ·Ͱͨͬͯ΋௚Βͳ͍͡Όͳ͍! ؆୯ʹ௚ͤΔ΋ͷͰ΋ɺ࣮αʔϏεʹӨڹ͕ͳ͍΋ͷ͸ɺ ଞͷ༏ઌ౓ͷߴ͍΋ͷʹԡ͞ΕͯɺτίϩςϯࣜʹઌԆ͹ ͠ʹ͞ΕΔέʔε΋
24. Copyright ©2013 Midokura All rights reserved
    Case1. ΍΍͍͜͠৔߹
    
    ػೳӨڹ͕গͳ͍ෆ۩߹
    Photo Credit: striatic via Compfight cc ࣮αʔϏεʹӨڹ༗ͱઆಘ͢Δ͚ͩͷϩδοΫΛ૊ΈཱͯΔ ղ
25. Copyright ©2013 Midokura All rights reserved
    Case2. ୲౰ӦۀɺSEʹ࿈བྷ
    
    ୲౰ӦۀɺSE
    Eng.
    Product
    End user
    ΤεΧϨʔγϣϯͷྲྀΕ
    ໾ ׂ ∐ ໰୊ਃࠂ
    TAC
    Case1ͱಉ͡
    ࢓༷Өڹݕ౼
    ࢓༷मਖ਼
    ಺༰൑அ
    ෆ۩߹
    ػೳ֦ு
    
26. Copyright ©2013 Midokura All rights reserved
    Case2. ΍΍͍͜͠৔߹
    
    େ఍ɺ΍΍͍͜͠
    ো֐ड෇ʹ࿩ͯ͠΋ϥν͕͔͋ͳ͍ͷ Α! ௐࠪͯ͠ંΓฦ͠·͢ɻɻɻ
27. Copyright ©2013 Midokura All rights reserved
    Case2. ΍΍͍͜͠৔߹
    
    ୲౰ӦۀɺSEͷ͓࢓ࣄ
    ͓٬͞Μʹ͔ΘΓো֐৘ใͷ৘ใ੔ཧΛߦ͍ɺTAC΍ Engineering ΁ͷΤεΧϨʔγϣϯΛߦ͏ ͓٬͞Μʹ͔ΘΓػೳ֦ுͷ৘ใ੔ཧΛߦ͍ɺProduct Manager ΁ͷΤεΧϨʔγϣϯΛߦ͏ ೗Կʹ͜ͷ͓٬͞Μ͕େࣄ͔ɺঢ়گ͕ϚζΠ͔Λ TACɺ Engineering, Product Manager ʹ఻͑ɺ༏ઌ౓Λ্͛ͤ͞Δ ͓٬͞Μʹ͔ΘΓ࠶ݱࢼݧΛߦ͍ɺTAC ΍ Engineering ʹ ূڌΛ͖͚ͭͭΔ
28. ݱ৔ͷSEͷۤ೰
    
    
29. Copyright ©2013 Midokura All rights reserved
    ཁ͢Δʹ
    
    THE ൘ڬΈ
    
30. Copyright ©2013 Midokura All rights reserved
    ͦΕ͕࢓ࣄͰ͸͋Γ·͕͢
    
    ௚઀͓٬͞Μͱ࿩͢෦ॺ͚ͩʹɺ ݟղ͕ҟͳΔͱ໽հ TAC
    ௚͞ͳ͍ͱ͍͚ͳ͍ϩδοΫΛ٧Ίͳ͍ͱ ࢖͍ํ͕͓͔͍͠ɺͱ͍ΘΕͨΓ… Engineering
    ػೳ֦ுΛཁٻͨ͠Βɺ౰વചΓ্͛૿Λ ໿ଋͤ͞ΒΕ·͢… Product
    ͋ͳ͔ͨΒങͬͯɺࢲ͕ࠔͬͯΔΜ͔ͩΒ Կͱ͔ͯ͠Α! ͱ͸͍ΘΕͨΒ΋͏ɻɻɻ ͓٬͞Μ
    େมͰ͕͢ɺ͓٬͞Μ͕͍Δ͔Β͕Μ͹ͬͯ·͢! ΪϦΪϦ
    
31. 
    Thank you!